The title should use caps, and Tech-Forums instead of Tech Forum or something, and some titles have periods, while others don't. And an image is missing. The URL to the missing image is http://www.techist.com/forums/iconimages/.gif
That's what happens when updating/importing a heavily modified forum to a much newer version. I also had many problems back when I was playing around with them.
Forum looks nice though; I hope you will find a fix for everything