[Serusers] Authentication Problem with registerd users....

Hi, I am using SER.cfg file with the following configuration for the registerd users, if (method=="REGISTER" & proxy_authorize("localhost" , "subscriber")) { if (!check_to()) { log(1, "LOG: unregistered user registration attempt\n"); sl_send_reply("403", "Only registered users are allowed"); break; }; }; but it does not work and i gets this error, Stopping ser: [FAILED] Starting ser: 0(7109) loading module /usr/lib/ser/modules/mysql.so 0(7109) loading module /usr/lib/ser/modules/sl.so 0(7109) loading module /usr/lib/ser/modules/tm.so 0(7109) loading module /usr/lib/ser/modules/rr.so 0(7109) loading module /usr/lib/ser/modules/maxfwd.so 0(7109) loading module /usr/lib/ser/modules/usrloc.so 0(7109) loading module /usr/lib/ser/modules/registrar.so 0(7109) loading module /usr/lib/ser/modules/auth.so 0(7109) loading module /usr/lib/ser/modules/auth_db.so 0(7109) loading module /usr/lib/ser/modules/acc.so 0(7109) loading module /usr/lib/ser/modules/exec.so 0(7109) loading module /usr/lib/ser/modules/group.so 0(7109) loading module /usr/lib/ser/modules/print.so 0(7109) loading module /usr/lib/ser/modules/textops.so 0(7109) set_mod_param_regex: usrloc matches module usrloc 0(7109) set_mod_param_regex: found <db_mode> in module usrloc [/usr/lib/ser/modules/usrloc.so] 0(7109) set_mod_param_regex: usrloc matches module usrloc 0(7109) set_mod_param_regex: found <db_url> in module usrloc [/usr/lib/ser/modules/usrloc.so] 0(7109) set_mod_param_regex: auth_db matches module auth_db 0(7109) set_mod_param_regex: found <calculate_ha1> in module auth_db [/usr/lib/ser/modules/auth_db.so] 0(7109) set_mod_param_regex: auth_db matches module auth_db 0(7109) set_mod_param_regex: found <password_column> in module auth_db [/usr/lib/ser/modules/auth_db.so] 0(7109) set_mod_param_regex: rr matches module rr 0(7109) set_mod_param_regex: found <enable_full_lr> in module rr [/usr/lib/ser/modules/rr.so] 0(7109) find_export: found <mf_process_maxfwd_header> in module maxfwd_module [/usr/lib/ser/modules/maxfwd.so] 0(7109) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(7109) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(7109) find_export: found <record_route> in module rr [/usr/lib/ser/modules/rr.so] 0(7109) find_export: found <loose_route> in module rr [/usr/lib/ser/modules/rr.so] 0(7109) find_export: found <t_relay> in module tm [/usr/lib/ser/modules/tm.so] 0(7109) find_export: found <search> in module textops [/usr/lib/ser/modules/textops.so] 0(7109) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(7109) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(7109) find_export: found <www_authorize> in module auth_db [/usr/lib/ser/modules/auth_db.so] 0(7109) find_export: found <www_challenge> in module auth [/usr/lib/ser/modules/auth.so] 0(7109) find_export: found <save> in module registrar [/usr/lib/ser/modules/registrar.so] 0(7109) find_export: found <proxy_authorize> in module auth_db [/usr/lib/ser/modules/auth_db.so] 0(7109) find_export: <check_to> not found 0(7109) find_export: <check_to> not found 0(7109) parse error (139,21-22): unknown command, missing loadmodule? 0(7109) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(7109) find_export: found <lookup> in module registrar [/usr/lib/ser/modules/registrar.so] 0(7109) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(7109) find_export: found <t_relay> in module tm [/usr/lib/ser/modules/tm.so] 0(7109) find_export: found <sl_reply_error> in module sl_module [/usr/lib/ser/modules/sl.so] ERROR: bad config file (1 errors) 0(7109) DEBUG: tm_shutdown : start 0(7109) DEBUG: tm_shutdown : empting hash table 0(7109) DEBUG: tm_shutdown: releasing timers 0(7109) DEBUG: tm_shutdown : removing semaphores 0(7109) DEBUG: tm_shutdown : done 0(7109) shm_mem_destroy 0(7109) destroying the shared memory lock [FAILED] can any body help me in this matter, Best Regards --------------------------------- Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1&cent;/min.