Dude,
This upgrade is NOT for general customers. What you refer to is called "Cutting Edge" or "CE" software downloads. They're intended for those people to TEST new features, menu changes, adjustments, etc. They are NOT designed for newbies, people wanting new features, etc. Furthermore, because CE downloads are considered private, beta testing, those who download realize the risk of doing so. Such risks run the gamut to glitches to all one's recordings being wiped out to totally bricking one's receiver.
Also, DirecTV does NOT support CE testers. DirecTV customer service reps. do NOT know about this and consequently cannot assist you if/when you experience problems with CE downloads.
The ability to watch a recording from one DVR through another one in a different room is called "MRV," or "Multi-Room Viewing." It was introduced in early 2009 and is STILL going through its testing stages.
Quite simply, CE downloads and MRV are not for the feint of heart OR those with little to no patience.