Restore a directory from backup

Dear All:

we are using backup command on AIX to take backup
as below in this command we also add compress command

ulimit unlimited
cd /apps/oracle
find orcldb orcldata arch |tee /apps/orabkp/ofgl.faysalbank.com-17Jun10Thu-ORCL-DB.bkp.gz.log | backup -ivqf - |gzip -c > /apps/orabkp/ofgl.faysalbank.com-17Jun10Thu-ORCL-DB.bkp.gz

The orcldb, orcldata and arch are the directories.

And we restore it thru below command

ulimit unlimited
cd /apps/oracle
gunzip -c /apps/orabkp/ofgl.faysalbank.com-17Jun10Thu-ORCL-DB.bkp.gz | restore -rvqf -

I would like to know if we want to restore only a single directory i.e. orcldb then how would it be possible.

Hassan