It's not that confusing. Here's my single.php code in its entirety:
<?php get_header(); ?>
<?php if (have_posts()) : while (have_posts()) : the_post(); // check for product thumbs
$thumb = get_post_meta($post->ID, 'pi1', $single = true); // check for product thumbs
$thumb2 = get_post_meta($post->ID, 'pi2', $single = true); // check for product thumbs
$thumb3 = get_post_meta($post->ID, 'pi3', $single = true); // check for product large image
$pli = get_post_meta($post->ID, 'pli', $single = true); // check for item price
$price = get_post_meta($post->ID, 'price', $single = true); // check items specs
$specs = get_post_meta($post->ID, 'specs', $single = true); // check items shipping
$buy = get_post_meta($post->ID, 'buy', $single = true);
$shipping = get_post_meta($post->ID, 'shipping', $single = true); $size = get_post_meta($post->ID, 'size', $single = true);
$sizelist = explode(" ", $size);
$color = get_post_meta($post->ID, 'color', $single = true);
$colorlist = explode(" ", $color); ?>
<?php // if there's a thumbnail
if($pli !== '') : ?>
<div class="news">
<div class="breadcrumbs">
<p><strong><a href="<?php bloginfo('url'); ?>">
<?php bloginfo('name'); ?>
</a></strong> ›
<?php the_category(' '); ?>
›
<?php the_title(); ?>
</p>
</div>
<div class="post" id="post-<?php the_ID(); ?>">
<div class="mi"> <img src="<?php bloginfo('template_directory'); ?>/phpthumb/phpThumb.php?src=<?php echo $pli; ?>&w=350&h=350&iar=1" alt="<?php the_title(); ?>" /> </div>
<div class="tr">
<?php // if there's a thumbnail
if($thumb !== '') { ?>
<?php echo $thumb; ?>
<?php } // end if statement
// if there's not a thumbnail
else { echo ''; } ?>
<?php // if there's a thumbnail
if($thumb2 !== '') { ?>
<?php echo $thumb2; ?>
<?php } // end if statement
// if there's not a thumbnail
else { echo ''; } ?>
<?php // if there's a thumbnail
if($thumb3 !== '') { ?>
<?php echo $thumb3; ?>
<?php } // end if statement
// if there's not a thumbnail
else { echo ''; } ?>
</div>
</div>
</div>
<div class="desc">
<h2>
<?php the_title(); ?>
<?php // if there is a price at the moment show it
if($price !== '') { ?>
<span class="price"><strong>$</strong><?php echo $price; ?></span>
<?php } // end if statement
// if there's not a price or item is sold out
else { echo '<span class="sold">Sold Out</span>'; } ?>
</h2>
<?php the_content(); ?>
<div class="specs">
<p><strong>Additional Details:</strong> <?php echo $specs; ?></p>
</div>
<?php // if there's a price and the item is still for sale
if($price !== '') : ?>
<div class="buy">
<!-- hiding original buy form code -->
<!-- end of hiding original buy form code -->
<!--Start Vcart Code-->
<form class="lsf" method="post" action="<?php bloginfo('template_directory'); ?>/ajCart/cart.php" >
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="add" value="1">
<input type="hidden" name="quantity" value="1">
<input type="hidden" name="business" value="<?php bloginfo('admin_email'); ?>">
<input type="hidden" name="item_name" value="<?php the_title(); ?>">
<input type="hidden" name="amount" value="<?php echo $price; ?>">
<input type="hidden" name="handling" value="" />
<input type="hidden" name="handling_cart" value="" />
<input type="hidden" name="shipping" value="<?php echo $shipping; ?>" />
<input type="hidden" name="shipping2" value="0" />
<input type="hidden" name="on0" value="Shipping" />
<input type="hidden" name="os0" value="" />
<input type="hidden" name="lc" value="US">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="return" value="<?php bloginfo('url'); ?>">
<input type="hidden" name="cancel_return" value="<?php bloginfo('url'); ?>">
<table>
<tr>
<?php if (!empty($size)){
echo "
<td> </td>
<td> </td>
</tr>
<tr>
<td></td>
<td> </td> "; } ?>
</tr>
</table>
<?php if($buy !== '' ) {
echo '<a href="' ?>
<?php echo $buy; ?>">
<? echo'<img src="' ?>
<? bloginfo('template_directory') ?>
<? echo '/imgs/bn.gif" border="0" alt="buy now" /></a>'; ?>
<?php } else {
echo '' ;
}
?>
</form>
<!--Start Vcart Code-->
<form class="crtAdd rsf" method="post" action="<?php bloginfo('template_directory'); ?>/ajCart/cart.php" >
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="add" value="1">
<input type="hidden" name="quantity" value="1">
<input type="hidden" name="business" value="<?php bloginfo('admin_email'); ?>">
<input type="hidden" name="item_name" value="<?php the_title(); ?>">
<input type="hidden" name="amount" value="<?php echo $price; ?>">
<input type="hidden" name="handling" value="" />
<input type="hidden" name="handling_cart" value="" />
<input type="hidden" name="shipping" value="<?php echo $shipping; ?>" />
<input type="hidden" name="shipping2" value="0" />
<input type="hidden" name="on0" value="Shipping" />
<input type="hidden" name="os0" value="" />
<input type="hidden" name="lc" value="US">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="return" value="<?php bloginfo('url'); ?>">
<input type="hidden" name="cancel_return" value="<?php bloginfo('url'); ?>">
<table>
<tr>
<?php if (!empty($size)){
echo "
<td><input type=\"hidden\" name=\"on0\" value=\"Size\"/>
Size:</td>
<td><select name=\"os0\" class=\"field\" >
<option value=\"$sizelist[0]\">$sizelist[0]</option>";
if (isset($sizelist[1])) { echo "<option value=\"$sizelist[1]\">$sizelist[1]</option>"; }
if (isset($sizelist[2])) { echo "<option value=\"$sizelist[2]\">$sizelist[2]</option>"; }
if (isset($sizelist[3])) { echo "<option value=\"$sizelist[3]\">$sizelist[3]</option>"; }
if (isset($sizelist[4])) { echo "<option value=\"$sizelist[4]\">$sizelist[4]</option>"; }
if (isset($sizelist[5])) { echo "<option value=\"$sizelist[5]\">$sizelist[5]</option>"; }
if (isset($sizelist[6])) { echo "<option value=\"$sizelist[6]\">$sizelist[6]</option>"; }
if (isset($sizelist[7])) { echo "<option value=\"$sizelist[7]\">$sizelist[7]</option>"; }
if (isset($sizelist[8])) { echo "<option value=\"$sizelist[8]\">$sizelist[8]</option>"; }
if (isset($sizelist[9])) { echo "<option value=\"$sizelist[9]\">$sizelist[9]</option>"; }
if (isset($sizelist[10])) { echo "<option value=\"$sizelist[10]\">$sizelist[10]</option>"; }
echo " </select>
</td>"; } ?>
</tr>
<tr>
<td><?php if (!empty($color)){
echo "<input type=\"hidden\" name=\"on1\" value=\"Color\"/>
Color:</td>
<td><select name=\"os1\" class=\"field\">
<option value=\"$colorlist[0]\">$colorlist[0]</option>";
if (isset($colorlist[1])) { echo "<option value=\"$colorlist[1]\">$colorlist[1]</option>"; }
if (isset($colorlist[2])) { echo "<option value=\"$colorlist[2]\">$colorlist[2]</option>"; }
if (isset($colorlist[3])) { echo "<option value=\"$colorlist[3]\">$colorlist[3]</option>"; }
if (isset($colorlist[4])) { echo "<option value=\"$colorlist[4]\">$colorlist[4]</option>"; }
if (isset($colorlist[5])) { echo "<option value=\"$colorlist[5]\">$colorlist[5]</option>"; }
if (isset($colorlist[6])) { echo "<option value=\"$colorlist[6]\">$colorlist[6]</option>"; }
if (isset($colorlist[7])) { echo "<option value=\"$colorlist[7]\">$colorlist[7]</option>"; }
if (isset($colorlist[8])) { echo "<option value=\"$colorlist[8]\">$colorlist[8]</option>"; }
if (isset($colorlist[9])) { echo "<option value=\"$colorlist[9]\">$colorlist[9]</option>"; }
if (isset($colorlist[10])) { echo "<option value=\"$colorlist[10]\">$colorlist[10]</option>"; }
echo "
</select>
</td>"; } ?>
</tr>
</table>
<?php if($buy !== '' ) {
echo ''; ?>
<?php } else {
echo '<input type="image" src="' ?>
<?php bloginfo('template_directory'); ?>
<? echo '/imgs/atc.gif" class="pp" border="0" name="submit" alt="Make payments with PayPal - it\'s fast, free and secure!">' ;
}
?>
</form>
<!--End Vcart Code-->
<div style="clear: both"></div>
</div>
<?php else : ?>
<?php endif; ?>
</div>
<?php else : ?>
<?php get_sidebar(); ?>
<div class="news">
<div class="breadcrumbs">
<p><strong><a href="<?php bloginfo('url'); ?>">
<?php bloginfo('name'); ?>
</a></strong> ›
<?php the_category(' '); ?>
›
<?php the_title(); ?>
</p>
</div>
<div class="post" id="post-<?php the_ID(); ?>">
<h2>
<?php the_title(); ?>
</h2>
</div>
<?php the_content(); ?>
<?php comments_template(); ?>
</div>
<?php endif; ?>
<?php endwhile; ?>
<?php else : ?>
<h2 class="center">Not Found</h2>
<p class="center">Sorry, but you are looking for something that isn't here.</p>
<?php include (TEMPLATEPATH . "/searchform.php"); ?>
<?php endif; ?>
<?php get_footer(); ?>