With all available documentation I was able to set SSO using a JforumSSO cookie having username.
However, after SSO from existing application, when user is directed to jforum there is a option to edit profile. Edit profile offers ability to change password and email address which were actually populated existing application.
This results in mis-match between email and password data between my existing application and integration of forum becomes futile.
Any help would help..
MJ [originally posted on jforum.net by sf_techie]