i remember (during a time when my pc worked and i could rewire with my old rig) being able to record the rewired tracks into cubase as if it were vocals or what-not. i just got Nuendo 3 to upgrade my to my new rig (PreSonus FireStudio Project | PreSonus FaderPort | Ram, Hard Drive, and driver upgrades...anyway).
My point is, when i play the rewired channels through nuendo, it delays playback for a few seconds and there's no option to record the audio into the nuendo project.
thanks