IESDP unknowns

As you may know, the Infinity Engine Structures Description Project (IESDP) is a modding community project dedicated to documenting the inner workings of the Infinity Engine. Nowadays, the IESDP has become fairly comprehensive, however there are still a few aspects of the IE that are unknown to the modders.

Given their access to the source code, I was wondering if the BGEE developers might be able to fill in some blanks for us, provided that this wouldn't violate your agreement with Bioware/WotC? In particular, the ARE file format still has many unknowns.