Well I found out what it was... After comparing it to some of my other scripts, they would show what the server was expecting.. such as this..

<username>string</username>
<password>string</password>
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And this server was like..

<Username />
<Password />
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After thinking about it.. I realized this may mean that the server has no idea if it should be expecting a string, or an intiger, or boolean, etc, so changing the XML to below.. fixed it..

<AdminUsername xsi:type="xsd:string">bla bla</AdminUsername>
<AdminPassword xsi:type="xsd:string">bla bla</AdminPassword>
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