Sound blaster creative 5.1 vx problem



hei guys i just bought this sound card creative sound blaster 5.1 vx and bought a creative inspire 5.1 system
now i have a windows 7 opertaing system and the sound card was not running so i went to the creative site and downloaded drivers from there and then installed them its installed and working but when i conect the sound system i gte sound only inone speaker other 4 are not working i cannot access the creative softwares any of them as it says the audio device supported by this application is not detected.the application will exit

i dunno what to do plz guys can anyone tell me what to do??