The archive sits at http://www.nexusmods.com/mountandblade/mods/3784/?
It was years ago, but to check it out, attach the mission templates trigger sets to the multiplayer mission of your choice. The end of the trigger list will look like:
] + utility_triggers + common_division_data + extended_battle_menu + division_order_processing + real_deployment + formations_triggers,
I don't think I ever wrote anything to sort the bots between players, but this has been done in various mods and Viking Conquest Warlords MP mode.
I also believe you will probably need to fiddle with things again, as the code underwent two major overhauls since v4. I suppose you could try v4, but there were some major improvements and fixes since then.