Rman on 8.1.6

[omegamark]

There is no catrman.sql in the 8.1.6

I ran the dbmsrman.sql

then D:\oracle\ora81\BIN>RMAN

Recovery Manager: Release 8.1.6.0.0 - Production

RMAN> CONNECT RCVCAT RMAN/RMAN@RMAN

RMAN-06008: connected to recovery catalog database
RMAN-06428: recovery catalog is not installed

RMAN>

what script should i run to create the recovery catalog;