I access GMAIL through BIS and I cannot get a server copy of a message to delete from my BB, but I must manually delete it on the server copy. Any good solutions here?

As Gmail is POP there is no way to delete it from your handheld and have it delete on Gmail

If you choose to forward your Gmail instead of accessing it via POP you'll have the option when setting up the forarding rule to delete the server copy - or move it to a different folder

The new BIS 2.0 does delete messages deleted on the BB on remote POP account.

POP service will delete from the POP mailbox. This is will not however reconcile with another program accessing it. Gmails POP service is actually an add on outside of the scope of typical function. Messages are placed in the POP folder. Gmail doesn't care if they're deleted or not. That has no reflection on the Gmail message list under the web UI.