fioreit, I have updated the post I referenced above. I spent several hours on the phone with Kaseya support yesterday. It seems that AVG changed the installer on May 14, effectively breaking the install process. The person I worked with was very knowledgeable and helpful, and is working with AVG on a resolution.
The problems with the AVG module over the last few years have been frustrating. I may need to look in to alternative options.