I have tried emailing the author and posting on his forums
He tends to be busy alot. 'Unable to convert from string to Int'
The function definition has changed, check your documentation (it's now BVM_CreateContext:Int() - no parameters).Its likely he changed other things without updating the tutorials. AFAIK he was doing a lot with the battle AI thing, he may have just forgot to test everything before he released 2.4 (which is what your using?)