How to Find your Pocket PC's Windows Mobile version:

CLICK THE STEPS BELOW,
ONE-BY-ONE, TO SEE
HOW TO DO IT:
  1. Tap Start
  2. Tap Settings
  3. Tap System
  4. Tap About
  5. Note the Version

More information at:

http://www.pocketpccentral.net/help/which_version_wm.htm