Apple Logic Pro /LogicExpress Discussion

I have logic 7.2 on a new macbook.  I installed Kontakt2 and I
installed Garritan personal orchestra.  Neither show up in Logic (or
garageband).  The GPO site information does not seem to be helpful.
When I previously installed Kontakt2 on my old G4 it didn't need
anything special to be recognized by garageband.  Now I'm stuck.  Can
anyone help?

Thanks,

Tim