Hmmm, some of those forum posts look like quite complicated stuff. I think this is what put me off trying it before. Plus reports on here that it didn't work.
Anyway, let me just get this straight in my head, I couldn't find this easily on the dvblogic website....
This software uses your physical tuner cards and finds the channels, it then 'creates' a virtual set of tuners. Now it isn't clear to me how it translates the channel tuning data, for example are all the channels on the virtual tuners DVB-T type and conform to BDA spec? How does it translate DVB-S channels into DVB-T tuning space?
Can you get a list of the virtual tuners frequencies/audio and video PIDs? If you can then you may be able to add a manual channel in jriver to get it to work.
I may have some time this week to have a play with it, but I suspect (given previous reports) that I too will be unsuccessful!
SBR