Nice site. I have a few things to add:
The horizontal top menu, along with the header that says "MtDewVirus" are aligned absolutely to the right of the browser window. This problem becomes apparent when viewing it full screen on a 17" monitor at 1280x1024 and viewing it on a much smaller scale such as 640x480 (not sure exactly). So, the menu and the header align to the far right even when full screen.
Since it appears you're using absolute CSS positioning, I would suggest using the min-width property to get the desired effect of having it aligned in the proper place, perpendicular to and flush with the vertical menu.
The body post text seems a tad too small, maybe increasing it by 10% might help.
All in all a very nice design.