Sdmmc Navione Navione.exe

Have purchase chinese 7' 2-din dvd gps on ebay for the wife.Unfortunatly it didn't come with any gps program.I decided to install IGO8 from Hollowman thread however i cannot see sd card when i go into gps setup.When i originaly went into setup navi path file was SDMMC/navione.exe/navione. Samsung Cool N Cool Fridge Zer Manual. Casio Cz 101 more. exe i think. After starting gps with sd card in with IGO8 navi path is blank. I have read and seach this forum and other forums. Have tried many thinks put still cannot see sd card in gps setup.I am either not getting it or unit has fault.