PaulMeuller wrote:
OSX VERSION:
OS X 10.8.2 (12C60) (upgraded to this version of Mountain Lion)
ACCOUNTS: Only 1
REASONABLY CERTAIN: Yes
Ah, cool. I got distracted by the 2011 date.
I'm not sure why you're missing stuff from your user account -- it should be as of the November 2012 backup.
Anyhow, here's the deal:
Migration Assistant can't "merge" data from the account on your backups into the account that now exists on your Mac. So, if there's any new data in that home folder (new since the Jan 13 backup), that you want to keep, copy it elsewhere first.
Create a new, temporary User Account via System Preferences > Users & Groups. Click the padlock and enter your current Admin password to unlock, then click the plus sign at the bottom. Make the new account an Admin account. Use any name but the one on your backups.
Then log off your current account, log on to the new one, and delete the old one. To do that, unlock it again (use the password for the new account), click the minus sign, and select Delete the home folder on the pop-up.
Now you're ready to do the migration. Start the Migration Assistant app (in your Applications/Utilities folder). You'll have to close all other apps, but then the process is pretty simple to follow (see Using Migration Assistant on Mountain Lion or Lion if you want the gory details). Do leave the Settings prompt checked so Time Machine's next backup will be an incremental one, not a full one.
When it's done, you should be able to log on to the transferred account and see everything, just as it was at the time of the last completed backup. The only problem might be, if whatever went wrong on your HD had already corrupted things, the migration may fail, or finish but things may be missed or incomplete. Since you spot-checked, that's doubtful, but always a possibility.
When it's all done, you can delete the temporary account, but it might be a good idea to keep it, just in case a problem develops with the main one.
Also . . . you need to be sure Time Machine is backing-up your system files & apps. The easiest way is to just spot check after the next backup, to be sure it has the System folder, with contents, at the top level of your HD. If it's not there, or empty, post back and we'll fix it.