I really don't like the yellow on green text, but that is more personal preference. Also, the main content should have some padding to make the text more readable.
There is not enough contrast between the blue links and the green background. Also, the side menu is stretched out on certain pages.
Could you at least care your visitor's eyes!!! Those are seriously very hard colors. Seriously you got to do much better than that.
Good luck for that
Fonts seems careless, and not enough contrast between links and background.
Everything else seems great.
If I were you I would shrink the side menu a bit. It's not the main part of the page so it doesn't need to be so big. Spread things out...add some padding- we're in the web 2.0 age now...no need to cram. i would clean up the footer...at least in Safari it's all on one side and there doesn't seem to be much order to it.
Those are some basic things that I think would help your layout. Good luck, keep up the hard work!
the navigator menu is very large why not you can make it to small so that it will attract more to the visitors