[gravel]

Thanks Dongan. However, that won't work, because the Thawte seal generator script only works for authorized domains, and if someone is not logged in, they won't be at secure.oursite.com.

I did get this to work:

{if $smarty.server.HTTPS eq "on"} 
<p align="center"> 
{literal} 
<script src="https://siteseal.thawte.com/cgi/server/thawte_seal_generator.exe">
</script> 
{/literal} 
</p> 
{else}  
<p align="center"> 
  [img]http://www.oursite.com/store/skin1/images/thawte2ndtier.gif[/img]
</p> 
{/if}

I used the "Register" page as a link because it is the only https page doesn't require the viewer to be logged in.

Well, it works in IE and Firefox. In terms of the code, I was just guessing, so if anyone sees a better way to code this, that would be great.