Yes, and it depends. (You're really asking two questions here.)
Yes, you can get a mortgage after a bankruptcy -- per FHA regs, anytime you can find a willing lender following a Chapter 13 discharge, or after waiting two years from discharge following Chapter 7. I just closed on a house 55 days after my Chapter 13 concluded successfully.
Your second question regards CR negatives. How old are they? For FHA purposes, lenders seek on-time payments and no negatives over the past 2 years. Anything before that essentially is disregarded (thought it might still affect your FICO score, which most FHA lenders insist must now be at least 620).
Oh, I was glad to see your post! I have asked a similar question on the mortgage board. We are getting ready to try to refinance our mortgage or apply for a different mortgage on a home we've fallen in like with (same price range as our current home). But I'm worried about how long we'll have to wait coming out of bk. Ch 13 discharged 2/09. How did you find a lender that was bk friendly?