Thank you scotty85!! I now have the 2.18 firmware and will proceed to Revolutionary.
I ran into one hiccup: When I flashed 2.18 firmware I got an error message stating:
error: cannot load 'Ruu_Vivo_W_Gingerbread_S_VERIZON_WWE_2.18.605.3_R a'
due to the command line not wanting to read the entire file name. I shortened the file name and loaded it without issue. Note it takes about 6 minutes to load.
This post saved me an incredible amount of time, and saved my Verizon phone. (a carrier I'm seriously considering ditching!)