How to connect Flex Builder debugger with the SWF inside aspx?

Question

Hi,

Can anyone show me a way (if there is any) to connect Flex Builder debugger with the SWF embedded in aspx page containing AJAX (meaning, let's say, http://localhost/default.aspx doesn't actually have the SWF, you have to select another view to get to the Flex app, but the URL remains the same; so just adding "http://localhost/default.aspx" as a "path to launch" won't do the trick ).

Thanks in advance.