How to remove compilation error WSDL is Web referenced

Hi,
I am able to consume following Webservice using Windows project:
https://xmlgateway.metavante.org/ConnectwareWSDL/CI/CIAcctPrflWSV3.wsdl


But when I add web reference in BizTalk project, I get compilation error:
Warning	1	Namespace 'mtvnCWCIAcctPrflReqData' is not available to be 
referenced in this schema.	C:\Do***ents and Settings\IL90599\My 
Do***ents\Visual Studio 2005\Projects\Test\Test\Web 
References\org.metavante.xmlgateway\Reference.xsd	
Error	2	The 'mtvnCWCIAcctPrflReqData:CIAcctPrflReqData' element is not 
declared.	C:\Do***ents and Settings\IL90599\My Do***ents\Visual Studio 
2005\Projects\Test\Test\Web
References\org.metavante.xmlgateway\Reference.xsd	


WSDL has schema reference types.

Any help is greately appreciated.

I use VS2008 & BizTalk 2006.
Thanks,
Sanjay

Attached is the WSDL content:
--------
<definitions xmlns:xsd="http://www.w3.org/2001/XMLSchema"

xmlns:tns="mtvnCIAcctPrflWSV3" 
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
	xmlns:im****t0="mtvnCWCIAcctPrflSvcReq"
	xmlns:im****t1="mtvnCWCIAcctPrflSvcRes"
	targetNamespace="mtvnCIAcctPrflWSV3" name="mtvnCIAcctPrflWSV3" 
xmlns="http://schemas.xmlsoap.org/wsdl/">

	<do***entation xmlns="http://schemas.xmlsoap.org/wsdl/">Connectware
Web 
Service Interface</do***entation>

	<types>
		<xsd:schema>
			<xsd:im****t schemaLocation="./CIAcctPrflWSV3SvcReq.xsd" 
namespace="mtvnCWCIAcctPrflSvcReq" />
			<xsd:im****t schemaLocation="./CIAcctPrflWSV3SvcRes.xsd" 
namespace="mtvnCWCIAcctPrflSvcRes" />
		</xsd:schema>
	</types>

	<message name="CIAcctPrflMtvnSvcReqMsg">
		<do***entation xmlns="http://schemas.xmlsoap.org/wsdl/"
/>
		<part name="messagePart" element="im****t0:CIAcctPrflMtvnSvcReq" />
	</message>
	<message name="CIAcctPrflMtvnSvcResMsg">
		<do***entation xmlns="http://schemas.xmlsoap.org/wsdl/"
/>
		<part name="messagePart" element="im****t1:CIAcctPrflMtvnSvcRes" />
	</message>

	<****tType name="mtvnCWCIAcctPrflWSV3Interface">
		<do***entation 
xmlns="http://schemas.xmlsoap.org/wsdl/">CIAcctPrflWSV3</do***entation>
		<operation name="CIAcctPrfl">
			<do***entation xmlns="http://schemas.xmlsoap.org/wsdl/"
/>
			<input message="tns:CIAcctPrflMtvnSvcReqMsg" />
			<output message="tns:CIAcctPrflMtvnSvcResMsg" />
		</operation>
	</****tType>

	<binding name="mtvnCWCIAcctPrflWSV3" 
type="tns:mtvnCWCIAcctPrflWSV3Interface">
		<soap:binding trans****t="http://schemas.xmlsoap.org/soap/http"

style="do***ent" />
		<operation name="CIAcctPrfl">
			<soap:operation soapAction="CIAcctPrflWSV3:CIAcctPrflMtvnSvcReqMsg" 
style="do***ent" />
			<input>
				<soap:body use="literal" />
			</input>
			<output>
				<soap:body use="literal" />
			</output>
		</operation>
	</binding>

	<service name="mtvnCWCIAcctPrflWSV3">
		<****t name="mtvnCWCIAcctPrflWSV3****t"
binding="tns:mtvnCWCIAcctPrflWSV3">
			<soap:address 
location="https://xmlgateway.metavante.org/ConnectwareWS/CIAcctPrflWSV3"
/>
		</****t>
	</service>
</definitions>
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