Try checking out my "Limit Number of Records per User" mods. The index for the mods is at http://www.jpdeni.com/...ds/limitrecords.html. There are options for a user to add a record at the time of signup, with and without the password lookup mod and with and without the "user-friendly" html.pl file.
JPD
http://www.jpdeni.com/dbman/
JPD
http://www.jpdeni.com/dbman/