Got similar network as described in the diagram in this article, --> http://www6.tomshardware.com/network/20030716/index.html
My configuration :
1. ADSL Modem/Router - Used PPPoE to auto dial ISP for connection (i.e. dynamic IP assigned automatically went dialed)
2. Wireless AP (with Router) - It's WAN port connected to the ADSL Modem/Router's LAN port.
3. Two of my computers (i.e. PC and Wireless Notebook) connected to the Wireless AP Router to access internet, and hosting Web Site.
Hope this is what you are expecting too.