The Club i-mate website has now made the latest update for the i-mate Pocket PC available for dowload.
It includes the security fix for MSN Messenger, configuration settings for the Bluetooth Serial Port profile, improvements in handling SMS and the latest radio version. The upgrade will erase all existing information on your device. It is strongly recommended that you synchronise your Contacts, Callender, Mail and Tasks to your PC before updrading your device.
The details of the ROM image are:
Rom version 1.66.00wwe
Radio version 1.10.00
Also the site says it requires Microsoft ActiveSync 3.7.1 for install.