Changing In Sysaltfiles Doesnt Work

HI All,I have started sqlserver in single user mode and changed filename in sysaltfiles for tempdb too point to new location. While starting sqlserver in normal it points to the old path and doesnt get updated with the new path.1.)is there any systable still to be altered???2.) i have even tried alter database, doesnt work.3.)The master files have been taken from server1 (where tempdb points to d:data) to server2 ( where i need to point tempdb to point E:mssqldata). i can detach and attach msdb and model successfully, but in the case of tempdb, i cant either alter sysaltfiles or detach and attach tempdb to new path., too tired in trying all the possiblities... Is there any possibility to update tempdb to point to new path???