Yes I'd like to find out how to disable the file attachment option too.

I got this through support but not sure exactly how to use it:

"you can delete from the template the "< tr >" which contains the auction->filename."

I don't know which file to edit for this , but when i did it on the cache (with firebug) it worked a treat. If you figure out how, please post a reply soI can do it too.

As for disabling picture attachment i think you can do this from the control panel under the general settings options.

Search for
   <tr>
      <td class="auction_dbk" colspan=2>
       {if $auction->file_name}
             <label class="auction_lables">{$smarty.const.bid_attachement_file}:</label>&nbsp;<br>
             <strong><a href="{$auction->links.download_file}" target="_blank" >{$auction->file_name}</a></strong>&nbsp;&nbsp;&nbsp;
             <a href="{$auction->links.deletefile_file}">{$smarty.const.bid_delete_file}</a>
       {else}
         <label class="auction_lables">{$smarty.const.bid_attachement_file}:</label>&nbsp;<br>
         <input name="auction_file" class="inputbox"  type="file">
       {/if}
        </td>
    </tr>

in t_editauction.tpl.


Also you might want to remove the info on the attachment file in the detail page (t_auctiondetails.tpl):
   {if $auction->file_name !="" }
   <tr>
      <td colspan=2>
         <a href="{$auction->links.download_file}" target="_blank" ><img src="{$mosConfigLiveSite}components/com_rbids/images/attach.png" style="border:0; margin:1px; vertical-align:middle;">{$auction->file_name}</a>
      </td>
   </tr>
   {/if}   


Just remove this and you should get rid of attachments.

Sorin