Oh nooo... Is this a student project? I have a trauma dealing with student projects... So I kinda don't accept anymore sidelines that has anything to do with students no matter how much the pay. I had to get sleepless nights and in the end, just get in a fight with them because of some misunderstandings...
As much as I love to make games, I haven't really made one myself. I also haven't developed games/apps in J2ME but ofcourse Java is my forte so it's not impossible.
The only help I can give you now is this...
Beginning Mobile Phone Game Programming
It's the book that I've long been longing for... It's available in national bookstore(you have to visit and try your luck in every store). Whenever I get the money it so happends that it's already out of stock. But having read the reviews in amazon and having scanned through the available topics, it should really help. Take my suggestion and buy this book. I hope that you don't become a rival when we happen to be on the same store though...
Also, I have ebooks regarding J2ME. You can post your email so I can send you(not recommended) or just pop me a message in yahoo messenger.
ID: netboysbe
I'd really like to help as much as I can but as of this time, I always go home tired. I rarely even get to chance to study making games... I hope that helps. Laterz... ;)

Convert limitations to great expectations... You are the creative force of your life...