audacity with usb speakers

hello! I need to know if there is any way to record streaming audio now that I have switched to these usb speakers? I was able to record before thru the speakers thru the sound card but now it does not find the signal , wondering if I ran something thru the line out or something to get it working or just go back to the other speakers…thanks…joe

Pleas stop multiple posting and read the replies already given
http://audacityteam.org/forum/viewtopic.php?f=12&t=8732