Newbie- How to put 2nd TIVO on Desktop

[toll house]

Unsure how to put second TIVO on to TiVo Desktop 2.2 (204920). Need to put MAC from second TIVO on desktop, but will this knock off first MAC? TiVo desktop seems to have minimal information, and nothing on TIVO Boards.
This is not yet to watch programs on alternate TIVO, just to play music and photos on both DVR's
Thanks. Community Boards have been great for me. Any idea of a glossary so new users can follow along better?

[MikeMar]

If both tivo's are on the same account, they should have the same mac

and you can just select which tivo in the now playing list.

[gconnery]

Yup, mutiple Tivos supported just fine with 2.2. Both Tivo's will see PC. Both Tivo's will see each other and can transfer files between them. PC can transfer files from either Tivo thru a pull-down.