Extensions on Win NT School Server

Using FrontPage 2002 with 2002 Server Extensions. Using
Sharepoint Team Services for administration. Using Win
XP. Using IIS 5.1. I have user name and password to ftp
to my folder on the school's website. I am able to ftp a
website from localhost to this folder.

When I try to http a website from localhost to this same
folder, I get message saying the extensions may not be
installed. This school server runs Win NT 4.0. The
server administrator says the server extensions are on as
far as he can tell. He is new. How can he or I tell for
sure if the 2002 extensions are installed? What other
things needs to be installed on his server for my website
to publish using http? I saw IIS 3.0 on his program
list. I saw under Services: FTP Publishing--Automatic
and World Wide Publishing Service--Automatic.