Ahhh... that should make it easier, then. Maybe there's something usable in the response that comes back from the web site when you post the authentication url to the WebClient object. It will come back as HTML, so you'll have to parse it, but before you go through the pa5rsing hassle, you should inspect the response in the debugger.
.45 ACP - because shooting twice is just silly
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"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001