Help with error please?

I am trying to get my script for adding a user with remoting framework to work but I am getting this error.

Code:

Request
POST /remote/index.php HTTP/1.0
Host: 127.0.0.1:81
User-Agent: NuSOAP/0.7.3 (1.51)
Content-Type: text/xml; charset=ISO-8859-1
SOAPAction: ""
Content-Length: 1159
Cookie: PHPSESSID=6628d88ea00a09552bb086d60844742b; 

<?xml version="1.0" encoding="ISO-8859-1"?><SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><ns7966:service xmlns:ns7966="http://tempuri.org"><sid xsi:type="xsd:string">edf7f675bf44857a0b977dc5a5ac23e5</sid><module xsi:type="xsd:string">web</module><function xsi:type="xsd:string">user_add</function><params><web_title xsi:type="xsd:string">mydomain.com</web_title><user_username xsi:type="xsd:string">jrambo</user_username><user_name xsi:type="xsd:string">Jon Rambo</user_name><user_email xsi:type="xsd:string">jrambo</user_email><user_passwort xsi:type="xsd:string">jr1234</user_passwort><user_speicher xsi:type="xsd:int">0</user_speicher><user_mailquota xsi:type="xsd:int">0</user_mailquota><user_shell xsi:type="xsd:int">0</user_shell><user_cron xsi:type="xsd:int">0</user_cron><user_admin xsi:type="xsd:int">0</user_admin></params></ns7966:service></SOAP-ENV:Body></SOAP-ENV:Envelope>
Response
HTTP/1.1 500 Internal Server Error
Date: Tue, 06 Jan 2009 22:53:58 GMT
Server: Apache
X-Powered-By: PHP/5.2.8
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Status: 500 Internal Server Error
X-SOAP-Server: NuSOAP/0.7.3 (1.51)
Content-Length: 652
Connection: close
Content-Type: text/xml; charset=ISO-8859-1

<?xml version="1.0" encoding="ISO-8859-1"?><SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body><SOAP-ENV:Fault><faultcode xsi:type="xsd:string">Client</faultcode><faultactor xsi:type="xsd:string"></faultactor><faultstring xsi:type="xsd:string">web_id cannot be resolved
</faultstring><detail xsi:type="xsd:string"></detail></SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope>
Error: Client: web_id cannot be resolved 

Please if anyone can help me I really would like to get this thing working I know I am so close!

 

Thanks for yor help but could you please give me an example of what you are referring to. I am not sure that I specified any client name unless you are talking about the domain. If that is the case then I am not sure what to do because I have been specifying the exact domain name. Where is the group selector that you are talking about?

Thanks again!