Yes I'm using the 7.1 version; you can fiddle at:
http://home.corthell.net:81/forums/ubb7/chat/
PDN == Public Displayed Name; I do realize that it selects the PDN but it never referances, if you look at the calls, it only uses the login name and password (i think its the third mysql call).
I've "cleaned up" my configuration file so line numbers wouldn't match up, else I'd tell you what lines to look at lol...
I did see that some of the scripts referance "name" so I set name as a variable but it doesn't get used; I'm sure it's only used for their "normal"/"non-integration" login system...