FYI You are in the classic ASP area of the forum.
1..Do you have the .net framework installed?
;;;"HTTP/1.1 500 Internal Server Error".
This freindly error. Set you browser to not show friendly errors - Open a browser then - tools/internet options/advanced - now uncheck the box that says show friendly http errors. Run your page, what does your error say now?
Have you run ASP or ASPX pages on this machine before? If not - what happens when you type http://localhost/localstart.asp
You should see the IIS help pages, do you?
This should help you:
Wind is your friend