[dancue]

The post bg color should either be alt1 or alt2. If you installed the code provided here and it did not match then you would have to do the following:

<tr>
<td class="alt1" valign="bottom" height="100%"style="border-right: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]">
		$template_hook[postbit_signature_start]
		<if condition="$post['signature']">
				<!-- sig -->
			<hr size="1" style="color:$stylevar[tborder_bgcolor]" />
			<div valign="bottom">
				$post[signature]
			</div>
		<!-- / sig -->

		</if>
		$template_hook[postbit_signature_end]
		<if condition="$show['postedited']">
		<!-- edit note -->
			<div class="smallfont">
				<hr size="1" style="color:$stylevar[tborder_bgcolor]; background-color:$stylevar[tborder_bgcolor]" />
				<em>
					<if condition="$show['postedithistory']">
						<phrase 1="$post[edit_username]" 2="$post[edit_date]" 3="$post[edit_time]" 4="posthistory.php?$session[sessionurl]p=$post[postid]">$vbphrase[last_edited_link_by_x_on_y_at_z_postid]</phrase>.
					<else />
						<phrase 1="$post[edit_username]" 2="$post[edit_date]" 3="$post[edit_time]">$vbphrase[last_edited_by_x_on_y_at_z]</phrase>.
					</if>
					<if condition="$post['edit_reason']">
						$vbphrase[reason]: $post[edit_reason]
					</if>
				</em>
			</div>
		<!-- / edit note -->
		</if>

		</td>
</tr>

I've highlighted the change in red. This change is replacing the last step mentioned above in my first post.

Hope this helps.