Long story short- the restore didn't work for me. Specifically, after doing a full restore some things just didn't work like sound and internet, and I couldn't figure out why/how they were broken.
The long version is this....I have a ubuntu box with mythtv running as an HTPC. It was a real pain to setup because I had to do some video driver trickery and manually map channels (where switching to one that doesn't work crashes the frontend) to get the whole thing setup. SO, I really wanted to back it up exactly as-is so that I never had to do that again. Well, I upgraded to Karmic and found out that LIRC is broken with no fix as of yet (with my specific capture card). SO, I thought...no problem, I'll just load the backup. At first I tried the restore from within the OS using the overwrite option (I know, probably a rookie error), but the terminal froze half way through. So I formatted the partition from the Live CD and ran the restore and everything was fine (well, not exactly- I had to edit the menu.lst just to get it to boot because for some reason the HDD UUID wasn't the same...). Once I got it up and running though I realized the sound driver was messed up as was the internet. So I tried it again, this time using the Karmic backup I made before doing the restore and had the exact same problem.
Any ideas? This leads me to believe that there's some flaw in this backup method where it's not copying every file exactly as-is. I've resolved the problem by manually reinstalling and reconfiguring everything all over again...but now I need a backup solution that I KNOW will work because really, I'd commit suicide before doing this all over again .