1. Backup

Installed Windows Mobile Device Center (since I’m using Vista). Connected (I didn’t have a profile) and browsed the device. Copied what I could (some folders had files in use, so I just skipped them; I thought Vista had fixed that copy issue where it runs into a problem and just stops, but seems its still there in this case).
Also backuped the data on the MiniSD card I have in there.

2. Wipe

Installing a new OS should do that, probably don’t need to do this manually, but its available in the Settings:System:Clear Storage. (Wonder if it would wipe the MiniSD too?)

3. Upgrade

Need to confirm I already CID unlocked it. I believe I did.

How do I verify if I already CID unlocked it?
http://forum.xda-developers.com/showthread.php?t=329170 Seems to have a util to do it. Adam suggested I try to flash with Cingular or TMobile and see what that does (if its still locked, the updaters will fail).

Starting here: http://wiki.xda-developers.com/index.php?pagename=HTC_Wizard, I need to determine if I have G3 or G4: http://wiki.xda-developers.com/index.php?pagename=Wizard_Versions. I’d say I have a G3:

IPL 1.01
SPL 1.06

So, trying http://forum.xda-developers.com/showthread.php?t=249474 to unlock it.

Doesn’t seem to work with Vista.

Trying the HTC new ROM http://www.htcamerica.net/support/8125/software-downloads.html.
I currently have

ROM Version: 1.1.9.3
ROM Date: 9/16/05
Radio Version: 01.01.10
Protocol Version: 4.0.13.16
ExtROM version: 1.1.9.106

So this should be a serious upgrade. I might try the TMobile one at some point, but since I’m with ATT at the moment, makes sense to use this ROM. ATT’s site leads to a dead end as far as finding their ROM:

4. New OS: WM6 or 6.1

WM6 is not officially supported, but should be available from xda-developers.com.

XDA Wizard WM6 for newbies

5. ActiveSync w/ Outlook 2007

Should be fine with Windows Mobile Device Center.

More general information: http://pdadb.net/index.php?m=specs&id=323&view=1

XDA HTC Wizard Wiki