in post_side.tpl :
Code
{if $postrow[post].filelink}
<br /><br />
<b>{$lang.FILE_ATTACH}</b>
<br />
{$postrow[post].filelink}<br />{/if}

There is no anchar tag (<A>) in the code , so attachments cannot be downloaded.

English is not my native language. I try my best to express my thought precisely. I hope you understand what I mean. If any misunderstanding results from culture gaps, I apologize first.