when restore to new server using controlfile backup need to move location of backup pieces nocatalog

when restore to new server using controlfile backup need to move location of backup pieces nocatalog.  I tried

 RMAN> configure CHANNEL DEVICE TYPE DISK FORMAT '\\corp.se.sempra
T-Bkup2';

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of configure command at 07/05/2013 11:51:53
ORA-01649: operation not allowed with a backup controlfile

I have restore controlfile and mounted database but not sure have redirect rman to new location.  Is there a way this is 9i on windows

Thanks,

Current configuration

RMAN> show all;

RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 20;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default