Security errors with Index Server

[me]

I have a Frontpage 98 Web posted with Internet Information Server on
Windows NT4. The search engine that is used with Index Server works fine
until folder access is set with WindowsNT. Trying to link to any search
matches that are in a secure folder will result in the below Access Denied
message.

The Index Server refers to the IP address of the Web not the site and I
think this is part of the problem. (.ie 111.222.333.444/test.htm not
www.test.com/test.htm)

Is there a way to make the Index Server to reference the text name of the
site instead of the IP address. Any other solution will also be
appreciated.

Thanks
ama...@newtel.com

"HTTP Error 401
401.2 Unauthorized: Logon Failed due to server configuration

This error indicates that the credentials passed to the server do not match
the credentials required to log on to the server.

This is usually caused by not sending the proper WWW-Authenticate header
field. Please contact the Web server's administrator to verify that you
have permission to access the requested resource."