I'm surprised that you're getting a Single Wire Multiswitch (SWM) setup. That's usually only provided to new customers (because older equipment, like your R10 Tivo, isn't compatible), and only if you're getting at least 5 tuners of equipment (e.g. 2 DVRs and 1 Receiver).
Did you have this R10 from an old account?
Sony SAT-T60 120GB (v3.5b)
HR20-700, HR20-100, HR21-200 HD DVR
HR10-250 HD DVR 400GB (v6.4a)
H21-200 HD Receiver
R10 DVR 160GB (v6.4a)