This is a classic 'MobileNavigator' device...
To run other software you need to replace the MobileNavigator\MobileNavigator.exe with another exefile, what you can run depends on it's specification...
Use a different SD card (Max 2GB, Not SDHC) and create a MobileNavigator folder and place the files from
this link inside it, Rename the .exe file and .mscr file to MobileNavigator.exe and MobileNavigator.mscr respectively.
Reboot device and start navigation as you normally would...
Open the newly created .txt file and post the contents here...
This gives us an idea of what this device is capable of!