I've just uploaded the 0.45-DC Multiplay Fix which will allow you to use our mod in multiplayer matches (sorry about that).
It's available at DoWFiles here:
Dawnofwar.gamefront.com
And ModDB here (once approved):
Moddb.com
Just to remind you, the full mod is available here:
Dawnofwar.gamefront.com
and:
Moddb.com
If you get sync errors while playing multiplayer, it's been suggested that you should try moving your AAAAAAAA.module and WXPMod_DCMod.dll files in the main Dark Crusade folder to a separate folder.
Enjoy, and happy gaming. ^_^