I've had no trouble collecting data from Win2k machines with CCS 11 using both of these scenarios:
- "built-in" CCS data collection
- leveraging RMS w/CCS 11
So far, NT domains are the only thing I haven't been able to hit with built-in ccs 11 DC... no way to setup a directory server connection when there is no directory server to target :)
Are your win2k assets in a win2k or above domain? in a workgroup?