How do You post info and pictures for your avatar and signature????? i usually am ok at the computer stuff but I cant find anywhere that allows me to edit them!

You need to upload them to another site and hotlink them in.

This is covered in another section which you can read about here: http://www.aimgirl.com/talk/index.php?showtopic=50595

In short it's something wrong with the forum itself and cannot be fixed for some reason or other.