Import Schema problems in XSD

Guinness4Strength

I'm implementing the XmlSchemaProvider attribute and am having some issues defining my XSD. I've created a XSD file which will be an embedded resource in an assembly. I'm attempting to import the MS WSDL types schema so that I can provide a defintion for char datatype, but every way I try and add the namespace and import the schema I get resolution errors. I'm VERY new to XSDs and have some working knowledge of XML so I'm not 100% positive I can do what I want to here, but this is the basic pattern I have seen in many WSDLs for adding support for char datatypes. Any answers or shoves in the right direction would be appreciated. Below is a sample format for my XSD:

<xs:schema targetNamespace="http://tempuri.org/XMLSchema.xsd" elementFormDefault="qualified" xmlns="http://tempuri.org/XMLSchema.xsd" xmlns:mstns="http://tempuri.org/XMLSchema.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xs0="http://microsoft.com/wsdl/types/">
<xs:import namespace="http://microsoft.com/wsdl/types/"/>

<xs:complexType name="MyComplexType">
xs:sequence
<xs:element name="Value" nillable="true">
xs:complexType
xs:choice
<xs:element name="boolean" type="xs:boolean" />
<xs:element name="byte" type="xs:byte" />
<xs:element name="unsignedByte" type="xs:unsignedByte" />
<xs:element name="short" type="xs:short" />
<xs:element name="unsignedShort" type="xs:unsignedShort" />
<xs:element name="int" type="xs:int" />
<xs:element name="unsignedInt" type="xs:unsignedInt" />
<xs:element name="long" type="xs:long" />
<xs:element name="unsignedLong" type="xs:unsignedLong" />
<xs:element name="float" type="xs:float" />
<xs:element name="double" type="xs:double" />
<xs:element name="decimal" type="xs:decimal" />
<xs:element name="dateTime" type="xs:dateTime" />
<xs:element name="string" type="xs:string" />
<xs:element name="char" type="xs0:char" />

</xs:choice>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:schema>