Apple Logic Pro /LogicExpress Discussion

Did you open the AU Manager and have it re-examine your audio unit plug 
ins? Its sort of a separate program but it only runs from within Logic 
- like the key command window.

As for compressors, there are dozens of them. There are software 
companies which essentially are founded on building compressors and eq 
software - such as URS, Sonalkysis, etc - however they are often quite 
expensive. However I would take note of these :

PSP just released a new one called OldTimer which is only $99.
http://www.pspaudioware.com/

Fabfilter has a cool one too which is not too much.
http://www.fabfilter.com/products/pro-c.php

Also Izotope and Wavearts have some channel strip plugs which might be 
useful.

If you going to get into serious money, you should get a UAudio card - 
they have the best emulations.