heres an update to my situation
previoulsy, i was messing around with S-VIDEO IN on my ASUS V7700 DELUXE
it came to a point where i did not get xbox image on my PC monitor
then aswell as an ordinary TV, both worked (no errors except for no display) sound was working aswell, i was able to ftp into the xbox aswell.
heres the weird part,
apparrently my friend won a "XBOX ADVANCE AV PACK"
so i took it from him and connected it up to my PC monitor again...
IT WORKED!!!!!!!, sound etc... working
but still it does not work on an ordinary TV
anyone know wats the prob??