Sorry about that mess.. ^
I did some final testing:
Aksys runs ok. Some files and/or folders just wont move from the MPC to the Mac. Selecting "Save to Mac" rather than drag n drop, seem to be the best option. If your name is too long, youre **** because you cant get it to the Mac and you cant rename it in Aksys because it then becomes corrupted. For good.....
Creating/Editing/deleting programs and multis in Aksys works very good.
Aksys runs as a PPC app instead as an Intel application. I dont know which effect this has on either the MPC or the Mac...

It seems none.
Regions are getting transferred into and from the MPC. Which is nice.
In short,
it seems that everything works, except for the long naming thing and a some crashes when transferring files to the Mac. But I had those problems on my PC as well..
Aksys might just be really buggy software..?