VASL Templates definitely doesn't like the latest VASSAL version 7.7.8. The data will load into your saved VASL file, but the entire VASL window suffers from a graphical corruption. when you start clicking on drop down menus and windows. Turn off templates and the problems disappear. Ok, I know it's not written to be compatible with this version of VASSAL, so not unduly bothered. You can load the counter images etc. but you can't run the program in the background, so in my case the Chapter H info isn't displayed. Just a heads up.
Cheers
Paul