I was going to say the same as Rocco, you dont have your submit page linked on your site, might get more submits that way..
Also, the submit link you listed, took a long time to load for me, might want to check into that.
On your site, you should think twice about putting links to pages that have no content, like the reviews and galleries sections, nothing there. Does'nt look the best to surfers. Just a thought.
ronnie