i agree with a lot of what "ricinacloak" has to say, generally i like the site, its good with plenty of content, and i do think you are aiming for the younger 13 - 17 age range,
i personally have google as my home page cause its simple and to the point, i would consider perhaps removing some content and spacing it our a bit more so the more important thinks jump out at you!
only a sugestion, colours are good, and so is layout, hope it goes well for you!
Please review my thread if you get a couple of mins:
http://www.webproworld.com/viewtopic.php?t=23364
Rikki
DCHG Limited