Sequential circuits samplers

Hello everybody-
I have downloaded the p2000 Sound Designer and it looks like a great program for using 
with the P2002 if only I could figure out how to get it to work.  I have an old ...very old 
G4...350mhz that I am running it on via OS9.2 , I've got my OMS setup and it's set up with 
my USB midi interface but when I try to connect it with the 2002 I get the "don't panic" 
error message that says make sure certain things are not selected, and that the serial port 
has been properly selected.  Do I have to have a serial port to runs this??  My machine 
doesn't have one.

Also are there any OSX programs that will work with a 2002 via SDS?  I tried recycle 1.7 in 
OS9 but didn't see anywhere I could pick an generic or prophet 2000/2 SDS sampler, 
maybe it is only on the PC version?  Has anybody tried Peak?

well if anybody has any insight I'd appreciate it thanks!