XDA II unlock yourself solution.

As this tool is fundamentally different from the previous version it pays to read this closely:
The new tool is a PocketPC application. As such it no longer runs on the desktop itself. The good thing is it needs *no hard reset* anymore. The application communicates on the device with the GSM phone directly. The program xda2unlock.exe now needs to be copied on to your XDA 2. To do this there are two options (choices):
1. Use the packaged installer xda2unlock-setup.exe, which will install the program on your PocketPC for you. (so this does run on your desktop but does not unlock anything yet)
2. Copy the binary xda2unlock.exe onto your device manually.

Next is to run the application on your XDA 2. The following is taken from the readme.txt in the installer:

Code:
Welcome to the Himalaya network lock repair tool!
xda2unlock.exe v2.1

This tool installs a program on your Pocket PC called xda2unlock.
It is installed in the \Program Files\XDA2Unlock directory.
But you can also find it in under Programs in the Start menu.
You need to tap on xda2unlock to execute it. A screen will appear
informing you of the progress and any errors that might occor.
When you are done you can remove the program under:
Start -> Settings -> System -> Remove Programs

This tool is free and you can find more tools and information at:
http://forum.xda-developers.com

Running the tool on the XDA should provide you with information if it was successful or not. This tool should specifically provide support for newer radio versions such as 1.10.x.
If you have problems, it does not work or you see other strange behaviour please post it in this thread. Supply as much information about your software as you can find and about the circumstances.
Version 2.1 adds some more error reporting to assist with 1.05.12 problems.
Enjoy.

source : http://www.freeyourmobile.com/xdaunlock.htm#xda2