It doesn't matter if you do all the error checking in the world, or if you have the most beautiful graphics, if your site or application design isn't usable, it's not going to do well. Get input and advice on usability and user interface issues here.
Can you actually read the Black text on dark red background, because I can't. It hurts my eyes. Take a page like this (http://www.sp0rk.com/forum/viewforum.php?f=12), and tell me you don't have a problem reading all that black text!
Dude, I refuse to believe you see it "fine". Being able to read it, and it being "fine" are two completely different things. It's called contrast, and the text on your site doesn't have any contrast. For example "View unanswered posts" is practically invisible. The headers (exp. "Forums, Topics, Posts, etc") do not contrast with the background.
getting better.. but there's still several text bits that are nearly impossible to read...
"The time now is Thu May 27, 2004 12:56 am" and "This data is based on users active over the past five minutes" and the legend down below that, "New posts No new posts Forum is locked"