Compaq Ipaq H3850 sat nav ?

[crystal clear]

hi there
I believe I may have bought a geniune second user ipaq h3850 that had sat nav installed. The problem I now think is that I was given possibly a copy/pirate of tt3 backup (only 1 disk) although i have the original compaq disk and all the cables.
I let the battery run down which in turn deleted the sat nav and navigator programmes from the ipaq. Unable to restore these it came to light the tt3 was possibly a copy and not complete at that.

Problem i have now is to purchase the sat nav programme to get the navigator back but dont know what i am looking for in order to reinstall the full programme and get my navigator back.

If someone could point me in the right direction of what exactley i need to be looking at to buy I would be greatful.

Does nobody know what kind of software I need to buy ? to get sat nav on the pda ???????
regards
Crystal