[Serusers] registrations fails?

folks, this is a probably another stupid newbiew quiestion, but i've tried to do my homework and i'm still stumped. here's what going on: i have a ser server running using mysql. there are three subscribers defined in the mysql ser database. this all seems to work ok. i can even login via serweb and see the users i expect. the problem is i am unable to register as any of these users. i have tried using various clients and finally tried sipsak, which looks like a great tool. the output form sipsak follows. if anyone can help me i sure would appreciate it. i'm feeling a little dense right about now... thanks, and best regards, daryl # sipsak -v -U -s sip:daryl@weblane.com -a ******** request: REGISTER sip:weblane.com SIP/2.0 Authorization: Digest username="daryl", uri="sip:weblane.com", algorithm=MD5, realm="weblane.com", nonce="419542a694e0dacb8f99c7e1c654662a1ec8f8ec", response="4cee204983fb5adddfe490d9f9b1ee9d" Via: SIP/2.0/UDP sierraos.com:2307;rport From: sip:daryl@weblane.com;tag=4dc3d2b To: sip:daryl@weblane.com Call-ID: 81542443(a)sierraos.com CSeq: 2 REGISTER Contact: sip:daryl@sierraos.com:2307 Expires: 15 Content-Length: 0 Max-Forwards: 70 User-Agent: sipsak 0.8.9 response: SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP sierraos.com:2307;rport=2308;received=204.202.9.61 From: sip:daryl@weblane.com;tag=4dc3d2b To: sip:daryl@weblane.com;tag=d6e48e48144fe598099a7e117da14791.7811 Call-ID: 81542443(a)sierraos.com CSeq: 2 REGISTER WWW-Authenticate: Digest realm="weblane.com", nonce="419542a694e0dacb8f99c7e1c654662a1ec8f8ec" Server: Sip EXpress router (0.8.12 (i386/freebsd)) Content-Length: 0 Warning: 392 204.202.9.61:5060 "Noisy feedback tells: pid=93538 req_src_ip=204.202.9.61 req_src_port=2308 in_uri=sip:weblane.com out_uri=sip:weblane.com via_cnt==1" error: authorization failed request already contains (Proxy-) Authorization, but received 40[1|7], see above