Hi goss!

You can use both log6 and Nuance in igo Primo 1.2 or in iGo Primo 2.0
If you download the thread you can read the instruction there.

You can not not use those voice in iGO Primo 2.4 ! They will not work!
iGo Primo 2.4 uses only loquendo 7, so at the moment the only available voices are in Russian, Brazilian and British English which you can find out here if you like:
[Only registered and activated users can see links. ]

but here in noeman we have ( I think?) a huge variety of all voices if you are using Android iGo:
[Only registered and activated users can see links. ]

OR
[Only registered and activated users can see links. ]