Being a jazz piano performance/education major, I hope I can help. First thing is getting a good book or two. For jazz piano, I recommend The Jazz Piano Book by Mark Levine. It is the best. Second would be the Jazz Theory Book by Mark Levine. The first book may have too steep a learning curve if your knowledge in Theory is little to none, so I recommend the second as well. In fact, I require it, I still use it every once in awhile. Third is jazz keyboard harmony by Phil De Greg. This is an excellent book that also includes a CD of a rhythm section so you can play along. If you actually go through all these books and play everything lights out, you'll be pretty happening, good enough to gig solo. After you get the hang of things and want to play with some cds, check out Jamey Aebersold's play-a-long cd's. They are a great resource for listening with your ear and keeping the time. And last, you need to listen to the pros. I quick list of recommended listening: Nat Cole (yes, he could play the piano like a mother), Oscar Peterson, Bill Evans, Art Tatum, Mccoy Tyner. This should be a good start.