If I may ask, what was the issue on the site? I was trying to re-purpose your example, but when I look at what is being returned it's just an error:
<?xml version="1.0" encoding="utf-8"?><ResponsePacket xmlns="urn:Microsoft.Search.Response"><Response domain="sharepoint.com"><Status>ERROR_SERVER</Status><DebugErrorMessage>System.NotSupportedException</DebugErrorMessage></Response></ResponsePacket>