need plain PS (not PDF) output

[Kieren Richard MacMillan]

Hi, everyone!

First of all, WOW on the downloadable-installable-executable Mac OS X 
(and others) version 2.6 -- I can now start telling a LOT more of my 
colleagues that they should move to Lilypond...  =)

I need straight PS output (to manipulate in Illustrator), not PDF. 
However, I can't determine where to put the --ps flag, and when I try 
to run from the command line, I get errors (can't find 
/users/hanwen/...lib, etc.).

Any help would be greatly appreciated.

Best wishes,
Kieren.