This unit crossed my hands once, but long time ago..I hope my memory is good, so, this is the procedure you should follow:
1. connect your device with a PC and for safety measures make a backup of the original folders MAPS and TARGA
2. Delete both folders completely
3. Install primo v. 1.2 (it could work stable on this old device) DL it from here -> http://db.tt/8Cj6PhFi
4. Copy folder Primo on the root of a flash disk (where the previously was TARGA folder)
5. Rename "Primo" folder to "TARGA"
6. Rename "Primo.exe" to Traveller.exe"
7. Replace sys file (inside the new TARGA folder) with this one: http://db.tt/3hMmeNLF
8. Finally add maps and POI's with the latest NavteQ 2013.Q1 edition:
9. Click Thanks button!