Layout Critique

Hey.

Just wanted to get some feedback on this layout I designed. I’m new to Photoshop so excuse it’s ‘noobness’ but it’s a practice. I added in some PHP stuff linking it with the forum.

I know iFrame isn’t a good way for navigation, just incase someone was thinking of that.

http://sawtek.org/vectosis/index.php

Please, constructive criticism only.