People, titanium backup restores previous versions of apk files.
Since v2.2 all system applications are quite different because I removed a lot of unused files/folders.
So, if you are flashing v2.2 or v2.3 (they are the same except for the kind of mount /cust) it's not a good thing to restore a backup with titanium.
Of course not a good thing because it's made with Titanium but I just exaplined the main reason.
Titanium will bring problems if you try to restore a backup made before v2.2 or with other ROMs.
I am not saying that Titanium is bad.
You (generic new user) have to wipe and flash v2.3 and manually install all your applications starting from zero.
Otherwise you will have bugs and unstability.
Then you make decision, but please don't write your issue here if you experience problems after a restore with Titanium
I advert you!