Dump the "under construction" image - it's very 1990s
Most sites are "living" / "under construction"
Your header is cluttered, so it's not easy to see whose site it is... I'd recommend reducing the amount of space for your partner sites and giving your own site more prominence. At the moment it's hard to see who is who
Navbar - Why are you using lowercase? It looks a bit odd
reviews - ign.ie - Iirsh Online Gaming Community - page title tag is far too short and undescriptive.
the text is overflowing the spaces and looks really odd on FF2 on Ubuntu (haven't tried on anything else)
" Powered by PHP, AJAX & mySQL. Site version 2.0.1" - does anyone using the site need to know that?
privacy policy - ign.ie - Iirsh Online Gaming Community - there are a couple of inconsistencies there. You might want to go over it again. For example you tell us to contact you at an address above - no address would appear to be present
ATV Offroad Fury 4 - ign.ie - Iirsh Online Gaming Community the word is "details" not "detals"
GameCon 13 - ign.ie - Iirsh Online Gaming Community - capitalisation again. Friday has a capital "F"