Although I appreciate the reply, I am still stuck.
I had already found the thread that you pointed to. The problem with the procedure is that I never see the WIndows Home Server entry in Device Manager.
I tried from 3 different client computers one with 7 Ultimate, one with 7 Business, and one with XP Pro SP3 - all with similar results. On the Windows 7 machines I get a message that the volume cannot be mounted and a message that the Z: drive
needs to be formatted before I can use it.
I checked the Power Pack level, and I do have Power Pack 3. If it matters, I have Windows Server 2003 SP2. I suspect that the difference between the PP and the SP is that the SP applies to the underlying OS and the PP applies to the WHS ovelay.
It's not entirely clear, but it's no more confusing than figuring out what updates I need for SBS.
What am I missing? Or, what else can I try?