ActionScript 2.0 :: Flash - Calling Server Side Script Only Once?

I am making a movie in which flash will call a ASP.NET page, which in turn gives a random ID, which is assigned as a file name to the user recorded streams. The Page will be called upon pressing Record button.When I compile the flash movie, pressing Record button gives me a new ID every time the page called. Every thing is fine.But the problem is, when I embed the SWF in a browser, or let say, when tested in localhost, the flash makes a call to the .NET page for the first time, but not later, and the ID being the same as first, the recorded streams are over writing. I want it to be unique every time user records a strea