Interested in Primo green/Igo 188.8.131.52811?
I have it on mio c710 and GPS500 rev2
You have to change the sys.txt for GPS and screen and the ini files in the mapchanger/ utility map.
For me is was not SD card or Storage Card but StorageCard in the ini files.
I can't help you, go for a boattrip till the end of octobre.
File is 1 month on zippyshare from now