UPDATE!!!
I realized that I didn't have an expander for "rar" files, and that was causing the problem. I used an extractor program (stuffit expander), unstuffed the file from Joyetech, and was able to install the MVR software.
IT WORKS!!!!
I reported the success to Joytech, so they may send the file to you if you ask them.
It's nice when a manufacturer cares enough to help out after the sale.
Vape On!!!