Configuring WSUS 3.0

I have just installed WSUS 3.0 on Server 2K3, installing IIS 6.0 first. I have setup my groups, done my synchronizations, approved / denied the updates that I would like, and everything looks fine (in the WSUS Console anyway)…except that when I configure the PC’s (I’m in a Workgroup environment and using the Local Group Policy settings on the Client PC’s) to look at the WSUS server for updates they continually go to the normal Microsoft Site. I have tried to access the local Default website on the Server (via http://servername, 127.0.0.1, AND the LAN IP address) and all I get is “This page under construction”.

Any ideas, or is there anything I’m missing? – I am the first to admit that IIS is NOT my strong point…