I am trying to cummunicate with a external webservice, but i can't get my wrapper class to work!

i think it has to do something with the return values... there are 3 return elements...!?

i want to call the NewAccount operation... 

could anybody tell me how to write the wrapper for this wsdl?

THIS IS THE WSDL

//Generated by wsdl2apex

public class soapserver_MS_SFService {
    public class NewAccount {
        public Integer errorCode;
        public String errorMessage;
        public Integer mskey;
        public Integer relatiecode;
        private String[] errorCode_type_info = new String[]{'errorCode','http://www.w3.org/2001/XMLSchema','int','1','1','false'};
        private String[] errorMessage_type_info = new String[]{'errorMessage','http://www.w3.org/2001/XMLSchema','string','1','1','true'};
        private String[] mskey_type_info = new String[]{'mskey','http://www.w3.org/2001/XMLSchema','int','1','1','false'};
        private String[] relatiecode_type_info = new String[]{'relatiecode','http://www.w3.org/2001/XMLSchema','int','1','1','false'};
        private String[] apex_schema_type_info = new String[]{'http://soapserver.jsm.marktselect.com','true'};
        private String[] field_order_type_info = new String[]{'errorCode','errorMessage','mskey','relatiecode'};
    }
    public class NewAccountResponse_element {
        public soapserver_MS_SFService.NewAccount[] NewAccountReturn;
        private String[] NewAccountReturn_type_info = new String[]{'NewAccountReturn','http://soapserver.jsm.marktselect.com','NewAccount','1','-1','false'};
        private String[] apex_schema_type_info = new String[]{'http://soapserver.jsm.marktselect.com','true'};
        private String[] field_order_type_info = new String[]{'NewAccountReturn'};
    }
    public class NewAccount_element {
        public String UserId;
        public String UserPw;
        public Integer Mskey;
        private String[] UserId_type_info = new String[]{'UserId','http://www.w3.org/2001/XMLSchema','string','1','1','false'};
        private String[] UserPw_type_info = new String[]{'UserPw','http://www.w3.org/2001/XMLSchema','string','1','1','false'};
        private String[] Mskey_type_info = new String[]{'Mskey','http://www.w3.org/2001/XMLSchema','int','1','1','false'};
        private String[] apex_schema_type_info = new String[]{'http://soapserver.jsm.marktselect.com','true'};
        private String[] field_order_type_info = new String[]{'UserId','UserPw','Mskey'};
    }
    public class SalesForceService_EnterpriceServicePort {
        public String endpoint_x = 'http://193.67.5.194/cgi-bin/jsmdirect?SFservice';
        public Map<String,String> inputHttpHeaders_x;
        public Map<String,String> outputHttpHeaders_x;
        public String clientCert_x;
        public String clientCertPasswd_x;
        private String[] ns_map_type_info = new String[]{'http://soapserver.jsm.marktselect.com', 'soapserver_MS_SFService'};
        public soapserver_MS_SFService.NewAccount[] NewAccount(String UserId,String UserPw,Integer Mskey) {
            soapserver_MS_SFService.NewAccount_element request_x = new soapserver_MS_SFService.NewAccount_element();
            soapserver_MS_SFService.NewAccountResponse_element response_x;
            request_x.UserId = UserId;
            request_x.UserPw = UserPw;
            request_x.Mskey = Mskey;
            Map<String, soapserver_MS_SFService.NewAccountResponse_element> response_map_x = new Map<String, soapserver_MS_SFService.NewAccountResponse_element>();
            response_map_x.put('response_x', response_x);
            WebServiceCallout.invoke(
              this,
              request_x,
              response_map_x,
              new String[]{endpoint_x,
              'NewAccount',
              'http://soapserver.jsm.marktselect.com',
              'NewAccount',
              'http://soapserver.jsm.marktselect.com',
              'NewAccountResponse',
              'soapserver_MS_SFService.NewAccountResponse_element'}
            );
            response_x = response_map_x.get('response_x');
            return response_x.NewAccountReturn;
        }
    }
} 

THIS IS MY WRAPPER 

error=

global class TestCallOut {
    WebService static  string LoadRlcode(string a, string b, integer mskey) {
        soapserver_MS_SFService.SalesForceService_EnterpriceServicePort soap =
        new soapserver_MS_SFService.SalesForceService_EnterpriceServicePort();
 
        return soap.NewAccount(a, b, mskey);
    }
}