Anyone using a Dell TL2000 23 slot LTO changer successfully with NW-OES 6.5?

We've got 12 now, we were told they'd work, but they're not.
I'm using Syncsort Backup Express 2.35.2, and the latest nwtape.cdm (v3.03.04 January 13, 2009)
I can open the jukebox, but can't manage, read, or label any tapes.

I'm wondering if I need a custom nwtape.cdm.