Someone known only as Eman posted a link on this site that made my day. I've followed his instructions with a slight tweak to the .cmd file. So, the long and short of it for those who've been following my DVR posts is that I've upgraded my DVR box to Vista x64 SP2 and re-enabled my remote desktop hack. And, for $50*, I've pre-ordered my copy of Windows 7 from Amazon, so when that arrives I'll likely be upgrading my DVR box again.
* Of course, now the early-bird special at Amazon is done and now it's $119.