How often is AHK updated?
It might be a relatively simple fix.

If you're comfortable with writing/editing/tweaking scripts.
Take a look at HKN, as that seems to be rather similar.

There is no disputing IS Boxer is a strong boxing option to go with.
Superb support from Lax, plus the forums here or on isboxer and the IRC.

I think either would be a good solution, if you cannot get AHK working.