Need to Post XML data to URL

[Sschuster]

I have an HTTP listener class (implements IHTTPListener) that will recieve all incoming POST's at a given URL.

I need to accomplish 2 things....
1). POST XML to this URL thereby triggering my listener class.
2). Once a post is received parse the XML and process it accordingly.

Anyone done anything like this. If someone can just tell me how to even POST and string of data to a URL that would help greatly.

Thanks.