In my experience AOL3.2+ad10 + nsd8x is not a good choice for Big5 charset, two examples I've tried:
1. insert Big5 chinese into a bboard, just get junk codes!
2. static html with meta <text/html; charset=big5>, but my IE uses ISO charset to render it!
I've tried AOL3.1 + nsd8x with Openacs, the bboard works just fine.