InfoPath Dev

I'm trying to follow instructions I found online http://aspalliance.com/1466_Printing_InfoPath_2007_WebBased_Forms_to_PDF.5 I need my Infopath web browser form to be saved as PDF format after a user fills it out. I'm trying to create a custom ASPX page to host my Infopath form, but I can't figure out how to add the XmlFormView ...

Does anyone know how I can add the XmlFormView control to the Toolbox in Sharepoint Designer 2007? It comes from the Microsoft.Office.InfoPath.Server.dll  assembly , but I don't know how to add that to Sharepoint Designer.  thank you!