They use to have them, but they may not anymore. I'm not sure I don't have them downloaded right now. Though they have some great tournies and tables etc.
Poker Stars is exactly known for their freerolls and bonuses. You should look to check out
Titan poker. There are links all over this site and they'll give you a nice little bonus. Actually if you download and not deposit they will probably call you in a few weeks and offer you free cash to come play.