i needed to move one of my custom profile fields (which was "company name") to be the first column in the member list instead of the username being first. i did it using this:
http://www.vbulletin.com/forum/showthread.php?t=112058
.......now i need to have it sort alphabetically by this field as well...
can anyone help me do what Jake suggest and modify the memberlist.php file to sort by my "field 5" as well? I need this very badly for my site! thanks for your help