Querying website

Does anyone know wth this means?

"You can’t just put the request strings in a browser with this solution, you have to post the data."

I have already tried using WebRequest, using HTTP POST, reading the response etc. none of those works.

Its basically this: I query a website usng HTTP POST in C#, and it returns the answer to a URL that I provided (call it myURL). Iam supposed to capture the data from that myURL. Websites being dynamic and stateless, dont see how this works.

If you can explain the design, I can figure out the code as well.