Logic Express 7 Audio Units, Where? Options

[Englishboyonice]

This is gonna seem like a dum question but I´ve switched from cubase and I cant seem to find any of the Audio Unit plug-ins? In fact the only way Ive so far been able to find them is loading them in Garage Band and importing the file.
I tried to change Instrument 1 etc. but unless Ive loaded this in Garage Band there are no instuments there.
Will somebody please tell me how I find them.
PS. I´ve ran the AU Manager and loaded most of the plugs and done a few hotfix updates to make other work.