Working on it.7.c version still doesn't work for me. I did notice someone above mentioned they are running on NFO servers, so am I.
However, I currently run a vB board with an old TS add-on, that while it has it's issues, does in fact work with the same server/credentials this mod doesn't. So I know its possible.
What is the difference between this add-on and that one? Does it sync user groups from vBulletin to the TeamSpeak server? If so, I'd be curious to see how that is working around the current issue at play here where most rented servers only have quest serverquery users which don't have the privileges to run certain commands. I do have an idea to work around the issue, especially for rented servers, and it is what I'm currently actively working and testing to make sure there aren't any unexpected issues.