[Serusers] SER --> RADIUS + MYSQL - Urgent problem !

Dear list, i have installed SER with radiusclient on a server and RADIUS (freeradius) with MYSQL DataBase on another server. SerRadius HOWTO is referred to a configuration on the same machine and with digest authentication. In my situation user are into mysql database and not in a digest file. At this point i followed instructions disabling "digest" word in authorize() and autenticathed() section in freeradius.conf. Tested with a simple client my server radius with mysql, response are fast and correct but when i try with SER i note that password is note received from radius! Is radiusclient the problem? Work radiusclient with "local" password or only with digest authentication? If digest authentication is request, it's impossible create a digest file for each user !!! Can anyone help me? Thanks Arcibald