We have 5+ sites running on AOLserver 3.3+ad13 in Big5 Chinese (includes Greenpeace China's website). There is no serious problem if your parameter in nsd.tcl set correctly, but as AOL treats charset internally in Unicode, at least two extended codepages (Hong Kong Supplementary Character Set and ETen Character set) cannot be converted and becomes ??.
I don't know how the internal conversion is done and whether it is possible to upgrade the code table that includes the mentioned two codepage.
