It's alright, but I agree with the people who said that you should size things down a bit My monitor is pretty big, so I don't have much of a problem with it, but it must be quite annoying for everyone with smaller screens ^^
One tiny thing: I'm not so fond of the font of the "submission guidelines"... I honestly think it looks a bit cheap :/ I don't know anything about CSS and stuff though, so I have no idea if it is hard to change fonts or set links and stuff
There's a lot of good in there, but a lot of elements are too large to be able to be viewed comfortable with other elements of interest on anything less than a very large monitor. I'm viewing on a 1920x1200 display and have to scroll a bit to get to interesting data. The sidebar provides access, but is so small compared to the central elements that it gets overwhelmed. Really, I think shrinking the central elements is all that is needed. Nice work!