Joe, did u find what you need? here is a site with the v22 and others including v32:

Index of /nav

and here is the v32 with the M logo and nite mode, just scroll down a bit the link is in the text:

1994-2006 BMW Navigation System Upgrades (Computer, Display, Software) | BMW E39Source

I have a oem v32 disc and tried it, then went back to a v18 trying for the old screens [ I like the OBC view while the radio is playing ] but need to find a copy of the old v17 for that. so tonight I burned the v32 night mode from the e39 site and loaded that, but only diff I can see is the M logo vs the BMW with wings logo, of course there's the day/night but meh

good luck

doug