Problems in creating a asp.net app in Visual Studio.net

Question

I am new to .asp and am trying to create a asp.net application in VB.net, however when ever I try to create one, Visual Studio prompts me the follow msg. "Visual Studio.Net has detected that the specificed Web Server is not running ASP.net Ver 1.1. You will be unable to run ASP.net Web application or services." I try to download Microsoft .NET Framework Version 1.1 Redistributable Package at http://www.microsoft.com/downloads/details.aspx?FamilyId=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en but the prob still exist I am curently using Visual Studio.net 2003 and IIS 5.1 Any one know how can the above problems be revolved Any qns what is meant by the Webserver, I tot the IIS is the web server? does that means that the IIS5.1 does not support ASP.net 1.1, I hope I am not total off in my logic, Thanks