I might be wrong (and I'd be very interested to hear if I am), but I don't think you can upgrade a mod mid-game.
Well, I suppose I could overwrite the file heroes1_6.dm with the new version. Seems a bit crude though, and I'm not sure it would fix the units already in the game. And it might cause difficulties with other games using 1.6. Hmm, maybe I should ask about this on the main forum.
Well I will look into it when I get the chance, but do you reckon you can cope with the funny slots for the moment? Just both of you promise not to use them.
