Noob Question

Ok I am sure this has been asked a million times but I can't find a direct answer. I am new to game development but have enjoyed what I have done so far. I guess I am a bit confused on the various versions of engines Torque offers. My question is for the start I only want to mess around with 2D gaming, learn the basics, blah, blah, and then maybe someday advance to 3D. I downloaded a trial of TGB and have been able to get whack a mole going, even with the errors in the tutorial, and have been able to add a few things to it. Still I have a lot to learn. So am I right to assume TGB will create 2D but you can not create 2D in TGEA? In other words, if I purchase TGEA I would have to create 3D and could not do 2D to learn? I don't want to have to purchase both versions to find out what I could have just purchased TGEA and have the best of both worlds. Also I have looked around this site a lot and did find some where that a newer version is coming, should I just hold off and wait for that? Also if I was to purchase TGB is there a discount that applies to TGEA if I wanted to upgrade? Basically I am a college student with limited funds, I can purchase one right now and want to get the best I can get for the money. Each time I read posts I get more confused with old information and not sure what applies to today. Any help would be appreciated, thank you.