dude man, move your light wayyyy closer. What light are you using? If its cfl/florescent you want it only a few inches from the top of the plants.
As TDTF says you should have put them in separate pots, you certainly need to do something about that aswell. If starting again isn't an option, I would assume putting them in a MUCH LARGER pot would be a start since the roots are probably to entwined to even begin to separate with out harm.
Also, check out the growing section of the forums and welcome to the boards.