Yeah, this is unfortunate, and would be a much appreciated addition if the author is still maintaining this plugin. I would attempt a compatibility patch for Visustella 8 direction movement myself, but the code is obfuscated, and understandably since this is a paid plugin.
Another welcome update would be tileset notetag usage, instead of having to tag every single map.
TSR, you still around and have any time to spare to help us out?