[magnus]

I was using this modification up until I read PayBas's post. To accomplish this without the need for plugins or extra functions simply uninstall the product (leaving the template changes in place) and re-edit the templates listed in the instructions, adding the following to the top of each template:

<if condition="$altrow =& $GLOBALS['altrow']"></if>
<if condition="!isset($altrow)">
	<if condition="$altrow = 0"></if>
</if>
<if condition="++$altrow % 2 == 0">
	<if condition="$rowClass = 'alt1'"></if>
<else />
	<if condition="$rowClass = 'alt2'"></if>
</if>

That's it.