Xperia X10 :: Error With Backup And Restore After Installing 2.1 Update?

just updated my xperia x10 to the new 2.1 op. Followed the instalation to the letter, backed up my files using the new backup n restore etc, updated it n then began the restore, now this is the frustration part. i did everything SE said to do even did 2 backups but when i try to restore it takes ages n then says could not complete. not only have i lost all contacts but more frustrating i have lost all my apps, both paid and free. my google account seems to be wrong although i cant realy remember it, tryed to get the user name/password sent to my hotmail but seems to of created a new account n i dont have these "links to re-downloads" ur android apps.