Ok, a file to update a 4.1 DB to 4.2 is at the end of this thread
http://forums.eqemu.net/viewtopic.php?t=5240
So make a new DB, load db.sql from 4.1, load the addon, then run 41to42fix.sql to make it 4.2 compatable.
That might hold everyone off till I get a new release done up.