Digitech Vocalist Live and Tracking

I searched and found a forum article pertaining to using the Digitech Vocalist Live as an external buss, but it was about 2 years old.

Has anyone had any recent luck in utiilizing a Digitech Vocalist while tracking? I'd like to find a way to solo a vocal track, pump it through the Digitech Vocalist Live, and send the resulting harmonies into a separate track that I can use as needed.

Now, I'd rather do live harmonizing by the singer, but a small portion of my singing clients are pretty bad at harmonizing (or for that matter, trying to sing a harmony track entirely separate from listening to their own voice). What I'd also like to do, is at least get the Vocalist Live to record just the harmony track, so they have something to listen to and practice so that they can actually sing the harmonies themselves.

Thanks.