This is a big BB mystery. I found one posting of a Verizon theme. That was for the 8800 series. When it was installed the interesting thing is that it didn't use the Verizon wallpaper. It picked up the default carrier wallpaper, but used the Verizon icons. Somewhere there has to be a Zen Verizon theme for the 8100 series. You can search every related forum on the web and I don't think you'll find it, but it must exist somewhere.