Hi ray,
If your question is how to install IIS on your XP, then follow this...
Start --> Control Panel --> Add / Remove Programs --> Add / Remove Windows
Components --> (Check) Internet Information Services option and click next.
You will be asked to insert XP CD.
If your question was where "else" can i get the install files for IIS, then
i dont think its available as_a_stand_alone. I dont think Win 2000 setup disk
will help you either.
You can use Webmatrix application which comes with its own web server. This
is in case you dont have access t IIS and want to develop / run ASP.NET.
Need any help, do post a msg back.
Happy Coding