I looking for developer who have already done such work. I looking for SSO plugin so users who login in Joomla 1.6 website and got to Joomla 1.5 website they will be already log in . So don't need to login twice . Current setup is users register straight to LDAP server and after they can login to the Joomla 1.6 as well they can login to Joomla 1.5 with same credentials . But I need to pass second login . Please bid if you have already done such work . I already spend 2 weeks with 2 developers who can't fix it . If you can show me work where you have already made same setup with Joomla 1.6 and 1.5 you have bigger chances that I will award that project to you . If you will start and after 3 or more days you tell me that you can't do I will leave review that you biding on projects and don't have enough knowledge to finish project.