if files exist show link ?

Problem is I cant figure out how not to show "Listen Audio Off" when a file is not uploaded.

All the above is working correctly as far as submitting the file

For example http://thepopupguide.com/Testing/ the link "The Web Bin" I didn't submit a mp3 file with that submission and I would like for it not to show "Listen Audio Off" etc...

Here is the mod code I'm working with on "submit.php"

$file_name = $HTTP_POST_FILES['ufile']['name'];

$new_file_name=$id;

$path= "adverts/".$new_file_name;
if($ufile !=none)
{
if(copy($HTTP_POST_FILES['ufile']['tmp_name'], $path))
{
echo "Successful<BR/>";

//$new_file_name = new file name
//$HTTP_POST_FILES['ufile']['size'] = file size
//$HTTP_POST_FILES['ufile']['type'] = type of file
echo "File Name :".$new_file_name."<BR/>";
echo "File Size :".$HTTP_POST_FILES['ufile']['size']."<BR/>";
echo "File Type :".$HTTP_POST_FILES['ufile']['type']."<BR/>";
}
else
{
echo "No MP3 uploaded or it was to large!";
}
}

$filename = "adverts/".$new_file_name;

if (file_exists($filename)) {
    echo "<a href=javascript:sendtoflash2('previewswf','../adverts/$id');><u>Listen</u></a> - <a href=javascript:sendtoflash2('previewswf','../adverts/`nosound.mp3');><u>Audio Off</u></a>";
} else {
    echo "";
}

Code (markup):

and here is the snip of code from submit.tpl

<tr>
 <td class="label">{l}MP3 Advert File{/l}:</td>
 <td class="field">
  <input type="hidden" name="MAX_FILE_SIZE" value="0.3906" />
  <input name="ufile" type="file" id="ufile" size="26" />
<br />
<p class="small">{l}MP3 Files size limit = 400kb 10-20 seconds.<br />Contact us for <a href="mailto:support@yourdomain.com"><b>Support</b></a>:{/l}</p>
 </td>
</tr>

Code (markup):

Heres my link.tpl current just has the line <a href=javascript:sendtoflash2('previewswf','../adverts/{$link.ID}');>....

{strip}
<table><tr>
{* show page rank *}
{if $smarty.const.SHOW_PAGERANK}
   <td>
      {include file="pagerank.tpl" pr=$link.PAGERANK}
   </td>
{/if}

<td>
   <a id="id_{$link.ID}" href="{$link.URL|escape|trim}" title="{$link.TITLE|escape|trim}"
      {* nofollow *}
      {if $link.NOFOLLOW or ($link.RECPR_VALID eq 0 and ($smarty.const.RECPR_NOFOLLOW eq 2 or ($smarty.const.RECPR_NOFOLLOW eq 1 and $link.RECPR_REQUIRED eq 1)))} rel="nofollow"{/if}
      {if $smarty.const.ENABLE_BLANK} target="_blank"{/if}>
      {$link.TITLE|escape|trim}</a> <span class="url">- {$link.URL|escape|trim} - <a href=javascript:sendtoflash2('previewswf','../adverts/{$link.ID}');><u>Listen</u></a> - <a href=javascript:sendtoflash2('previewswf','../adverts/`nosound.mp3');><u>Audio Off</u></a></span>

      <p>{$link.DESCRIPTION|escape|trim}</p>
</td>
</tr></table>
{/strip}

Code (markup):