How are you getting on?
I'm using (or attempting to...) use a Pod X3 with Logic 8... so far I've managed to get about the two working together for about 2 minutes before it all goes horribly wrong (no audio, distorted audio etc.). I have to say I'm really pretty disappointed so far.
It would be really useful to be able to record a clean signal, then process using Pod FX as Audio Units (which in theory is 'doable') but I've had no luck in trying to do anything other than update firmware, install apps etc.
There doesn't seem to be much help so far other than 're-install' everything and keep trying.
POD Farm looks like it could be such a great AU set, shame I haven't been able to get a sound out of it... The ability to deep-tweak settings in Gearbox would be great too but again, can't hear anything while tweaking so it's guesswork...
The issues are known, you are not alone... And I get the impression there are people out there that don't have any problems?