@ a nomad:
Got 10.6.2 and modul8 2.6.1 and Soundflower works well.
Soundflower 2 Ch on Build-In
Systempreferences Sound-In Soundflower 2Ch and Soud-Out Soundflower 2 Ch
Make a newstart, start modul8 and turn Sound-In on.
For me it works.