[Serusers] problems with ser + radius

Hello, I'm using fedora core 4 and radiusclient-0.4.3. installing SER 0.9.4 with support for radius I can't install radius modules and when run my SER I view this mesasge error 0(441) ERROR: load_module: could not open module </usr/local/lib/ser/modules/auth_radius.so>: /usr/local/lib/ser/modules/auth_radius.so: cannot open shared object file: No such file or directory 0(441) parse error (41,13-14): failed to load module 0(441) set_mod_param_regex: No module matching auth_radius found | 0(441) parse error (71,20-21): Can't set module parameter 0(441) set_mod_param_regex: No module matching auth_radius found | 0(441) parse error (72,20-21): Can't set module parameter 0(441) parse error (326,34-35): unknown command, missing loadmodule? Anybody can help me ? Thanks Guido