I'm supposed to write a script in ASP that takes the user's NT logon username. Would someone please help me.

You'll need something like response.write(Request.ServerVariables("LOGON_USER")

I use LoggedOnUser = Request.ServerVariables("AUTH_USER")
intLength = Len (LoggedOnUser)
For i = 1 to intLength
strChar = mid(LoggedOnUser,i,1)
if strChar = "\" then
LoggedOnDomain = left(LoggedOnUser,(i-1))
LoggedOnUser = right(LoggedOnUser,(intLength - i))
end if
next

You also need to go into the site's properties in the IIS MMC and uncheck Allow Anonymous Access and check Windows NT Challenge/Response.

That's the only way I've been able to get an intranet site to pull the user's login ID.

By the way, any reason this is posted twice ? http://www.webhostingtalk.com/showthread.php?&threadid=65133