@rodanny: a "new" kit for hassle-free installation is available in the PlayStore.
Otherwise, read through the board here and decide for yourself which variant of iGO you want, you will surely find the corresponding APK with the basic version in the corresponding thread. The addition of files (map POI, etc.) and the corresponding skin with extensions is available here in the board in abundance and mostly well explained.

otherwise the best way applies: learning by duing