Wow.
ok - lets just go over a couple of things. Are you really running OneWorld B7321 ? What service pack are you running ?
When you went to a new AS/400 - what version OS/400 are you running ?
B7321 is totally ancient. I was installing that back in 1997 - 11 years ago now. Versions prior to B733 were dropped from support even when I was still working at JDE - and I know some companies that stayed on the old version but were forced to never upgrade their AS/400 because those versions could not support the latest OS/400 code.
So, please confirm that you're really running B7321 and whatever service pack you're running.