Most of these positions have already been filled through the match. Those programs that have saved spots to fill outside the match typically don't advertise them. Here's what you need to do:
Send a CV and cover letter to every program director explaining your situation and interest in anesthesia. It should be kind of like a personal statement. The addresses are on FREIDA. If you don't know how to do a mail merge in Microsoft Word, now is the time to learn.
Reapply through the match for a 2009 CA1 position. In the course of your interviews, you may get offered a 2008 position. If not, a 2009 position is better than no position.