Superior Drummer not showing up in Logic Pro 9
So I installed Superior Drummer 2.0 and even a expansion pack. I have Logic Pro 9.1.5. But when I go into Logic, create a new software instrument track, go to I/O and try to choose S2.0 or even EZ Drummer it's just not there. Some other plug ins show up though. I've went into my AU manager and both Superior and EZ Drummer show up. Both are validated but yet it doesn't show up when I try to create a new track. In the AU manager there's a check under "logic" but not under "nodes". I've tried reinstalling, restarting, rescanning the AU manager. I'm running out of ideas.
Logic Pro, Mac OS X (10.7)