Go to gawker.com > "login" > "forgot password". Put your email. If it says it sent a new password, then they had it. "Username was not in our records" -> it wasn't.
If the servers are still compromised, I don't think they'd have stopped with a dump full of hashes and a few posts on Gawker. My guess is that the intrusion was discovered while they were doing the dump, which is why it's incomplete.
