Try adding abit of verb to the snare, not much, just so it fills the mix up more.
And i think you should lower the frequencies at 100hz and lower on all instrument except the drums and the bass, that way your kicks will pop through nicer.
And the kickdrum still is to muddy, try adding a gate to it, and maybe lowering the frequencies below 80, and giving it abit of a boost in the treble, so you get more of a click(Not meaning you have to have clicky kicks, just enough so it cuts through the mix.).
And i dont know if its because of myspace or not, but i would probably put abit more highmids on those guitars.
But its a good song, and you have a good foundation to mix on.
Edit:
Oh, i have a feeling that you dont have any multibandcompressor over the mix? That might be an idea, just to make it spark and thunder abit more.
