What MOD did the site use to support attachements of w3 files?

What MOD did the site use to support attachements of w3 files? I'm just wondering... because I wanted our clan forum to have the same function, So we can avoid using rapidshare or whatever uploading site..

Thanks in advance.

Please delete this thread... I already found out how to do it.. Sorry

It's you with the sick signature! gtfo.