Ok, maybe some people still feel confuse about making Garmin unlock or find some maps. so I decided to write a summary and make it clearly. But I still need more time for finsh. also All of the actors have risk, I will not assume the the loss when you try.
How to use normal gps
First, you need install garmin mobile xt into your pda.
than go to setting->about you may see xxx ID(the last one in the top)
copy it and using keygen v1.1 fill the id to card id. click generateyou may get unlock id. copy yhe unlock to notebook. than save as SW.UNL
than copy it to ./garmin
after that you can try does it work or not
Find maps id and tools:

For Maps Resources:

Other:

more information you can chech the pdf files
thx for http://cgpsmapper.com/