Yamaha DTXpress/DTXplorer/DTXtreme

I was wondering if anyone has been able to setup a MIDI map for Cubase 4 using a DTXPRESS III.

If so could you provide a quick bulleted list of the steps I am supposed to do to get this too work.

Also, I would like to trigger kits in NI Battery 3, so I am not sure if this is necessary information.

Thanks for the help!