XF 2.0 Forum disappeared

So, admin is still working.

It's a fresh install on a new forum. I have already tried unticking friendly URL's but nothing. Any ideas what might be affecting this? I did change a few settings after working down the options, but can't work out what is causing the error :)

The forum address was http://playlikepele.com/upload/index.php (I'm looking to move onto the main URL after i've configured everything)

Any help would be appreciated............. Thanks in advance

P.S. i'm not that technical