I think Xol's biding his time on that one. The length of time it's taking makes it seem like he's going through the code and converting it to something less painful to update. Advanced Spawn Controls works perfectly for me. Make sure you type the name right. Unlocalized names are nevermine.YourMobHereInCamelCase
I honestly wasn't expecting helpful replies, but thanks, I'll keep those in mind should I try AoA again.
It'd be nice if there were a mod out to help control mobs, with the level of customization that Lycanites has. User friendly config files, control where mobs spawn and under what conditions via groups. Get to tweak nearly every aspect of the mobs stats, and their drops. Good stuff.