Tried it and got:
Fatal error: Call to undefined function: replace_ifno() in /*****/*****/*****/includes/template.php on line 128
Also do I just put the content if no thumbnails in {tag2} in categories.html say:
{ifno tag1}
Content here
{endifno tag1}
Line 128 is:
$template = $this->replace_ifno ($template);
Thanks
Steve