Help with Routing to TC Helicon Voicelive 2 for processing

This may or may not help but I use an external VoiceWorks Plus sometimes and here is how I have it set up.
 
I have a V-Studio 700 and I connect a SPDIF from the interface to the digital in of the VoiceWorks and a SPDIF back from the VoiceWorks to the digital in of the interface.  In Sonar, I create a SEND from the original track and one of the choices in the drop-down is the digital out of the interface.  I create another audio track to receive the input and set its input as the digital in of the interface.
 
You could just as easily use a normal audio in and out instead of digital.  I used the digital ins/outs simply because I have keyboards or mics plugged into all my available audio inputs in the V-Studio and I didn't want to yank cables everytime I wanted to use the VoiceWorks.
 
In the VoiceWorks, I turn off the dry signal so all that's coming out of the unit is the processed copy.  Sorry that I don't know your particular model.  In the VoiceWorks, you can edit a preset to set the levels of the various harmony/doubling parts and the level of the dry (original) voice.  I have to get the manual out if I haven't used the unit in a while.
 
So, to recap:

• SEND from your original vocal track to whatever audio out or digital out is going into the TC Helicon.
• Turn off the dry (original) voice in the TC Helicon.
• Connect the output of the TC to your interface.
• Create a new audio track in Sonar and set its INPUT to the input on your interface that is receiving the TC.
• The TC is very sensitive to level so make sure what you are sending it meters strong without hitting the red.
• Likewise, you will have to use the trim (or input sensitivity or whatever your interface calls it) to make sure you get a strong, clean signal back.

 
 
I had to mess with levels a little to get things working but now it is set up whenever I need it.  I got frustrated a bit but now it's good to go.
 
I think I have a post here somewhere describing this process.