Your question's XML is malformed. You need to fix your XML.
These lines are malformed...
<To Qualifier="blah"</To>
<From Qualifier="blah"</From>
The above should probably be...
<To Qualifier="blah"></To>
<From Qualifier="blah"></From>
These lines are malformed too...
<SignatureValue>blahblah>
<X509Data>blahblahblah;/X509Data>
... and I'm guessing this is what you want for them...
<SignatureValue>blahblah</SignatureValue>
<X509Data>blahblahblah;</X509Data>