using App_WebReferences on a webpage (webservice)

Question

I am trying to call a webservice from my webpage. I have used the menu to add a web reference and now I want to call it from the a .cs file.

I tried doing it in a forms application and had no problem doing it since the applicationname could be used as a namespace. From what I know of webpages this can not be done in a webpage.

the Web reference (or webservice - anyone can tell me what it is called in a webpage and what the diffrence is) I want to call is http://localhost/reportserver/reportservice2005.asmx (standard wbeservice used for reporting services)

At the moment all I got is: App_WebReferences --> RSService --> reportservice2005.discomap --> reportservice2005.wsdl

And no code.