Hey hey.I just resolved it .
I formated xp and instaled Windows 7. Thank you for reply.
I found motherboard cd , and instaled some drivers
( i think vista ) and software ... seems to be okey now... I did not take cd earlier because I thought i can't use it cause there is no 7 drivers on it .
THe usb device ... i think it's my camera with mic on it ..
Thank you anyway- And sorry for bad English , it's not my lang