For the most part, I agree with what Allen said. I think you are off to a fine start.
You really should look at using topic/poll buttons that compliment your other colors.
The green for your table headers is a nice flat color that is pleasing on the eyes, however, it doesn't match the green in the buttons under your header image. You might want to see whether changing the table headers to match is too loud or not. The green on your lightbulbs/folder should also compliment your overall scheme.
Speaking of the header image, it is quite large, and fixed, which can present problems for people running at different resolutions....either stretching the screen or leaving a gap.
The red doesn't bother me, as it is a muted tone, and there isn't too much of it.
In term of your forums. I'm surprised to see that you have number of topics/posts turned off. With that it is difficult for the user to see which forums are active.
You also should move your closed/private forums to the bottom. A visitor is likely to be frustrated if the first few links they click are closed doors. Although this may work for your particular members.
Some message icons should be replace with ones better aliased for dark background.
Your timestamp and quote backgrounds are a bit out of place with the other colors.