That thread is to change the address of the tivo, which as wrote wouldn't help. it doesn't matter if your tivo set to address 1-9, the pioneer dvdr code has the same effect as address zero.
A tivo set to address zero will accept commands from remote no matter what address its set to. And remote set to address zero will control all peanut driven tivos no matter what address its set to.
Anyways you can not use either a ofa 6131nw or URC urc-200 to switch addresses on a tivo, you need a true peanut remote.