Well, I went ahead and committed this to SVN, but if anyone has a suggestion on how to do this better, let me know. Here's the array:
zone/AA.h
Code:
#define MAX_AA_EFFECT_SLOTS 7
extern AA_Ability aa_effects[aaHighestID][MAX_AA_EFFECT_SLOTS];
zone/AA.cpp
Code:
AA_Ability aa_effects[aaHighestID][MAX_AA_EFFECT_SLOTS];