I am a massage therapist in Palm Beach County Florida. I made $ 30,000 in 2007 in the books on a 1099. What will I pay taxes for 2007? Please help, I have no idea how much you should be saving!

30 apartments painted by a man who works for madison rental properties in Ann Arbor this I paid only 30% of what he owes me all this person I would take him to small claims court.So threat to me that my ssn # 1099 to a file I do not think it even has a claim, how can he or rent this co me tax ID # I think its sad to have to deal with people like this.any would help a lot thanks Tommy