Besides the previous posting, I sent a couple of messages to MTU staff asking for help. I'm guessing they're so busy with the KHPro and Vogone updates that they weren't able to get back to me. So I just kept trying different things.
Finally I had a breakthrough. The fix for me is similar to what webcrawler suggested, but still different. The only way I could get Vogone to stop zeroing out a file was to have the post-Vogone file be located in a completely different directory (folder) than the pre-Vogone song. There were a few other quirky things I discovered, but I won't go into those details. The main thing is that I was finally able to create my first (20-track) CD+G disc. It worked great. Like the rest of you, I'm really looking forward to seeing what the new versions have to offer.