78148 radius authentication

I have existing scripts to authenticate to my radius server,and existing scripts that will allow users spamassassin users to log in to a mysql database and change there preferances. The spamassassin script says that I can replace the existing pwauth authentication system with anything I want. unfortunately I do not know how to "call" the radius script and get the required values to "unlock" the configuration page. I do not have much of a budget but i think that this is probably pretty simple. [login to view URL], [login to view URL],and [login to view URL] Which needs to be "unlocked" are the key scripts.