so you hit your asp.net page, what do you see? Some XML?
You would use the HttpService class to hit the same URL from
within your MXML code as you're using in your browser. While using
HttpService class, you'll need to register an event listener for
result event. Once server returns the response, flex would fire
your event listener with the data from the server.
Now this is up to you what do you want to do with this data.
If you've worked with AJAX calls, this should sound familiar.
Please look up docs that come up with Flex Builder for
HttpService related examples and XML as a data type -- also know as
E4X -- and collections such as ArrayCollection and XMLCollection.
Hope this helps.
ATTA
P.S. what is 'vd'?