iGo is probably the most up to date program you can install as tt 6 is getting pretty old now.
Theres no need to patch or activate anything, all the licenses you need are generally included when you download the program.
Thanks for your advice.
I had a look there prior to my post and found an excellent guide on how to unlock my c710.
I think however that "Skinless Method for older Mio Devices wanting to just run igo8" is the one that fits me best.
However, were can I get the IGO executables to put on the SD card according to the post referred to?
Will these work?