We are working with someone who is sharing files through directory browsing
on a Windows IIS box. We can access the directory from outside our firewall
/ network but from inside our network we cannot (BM 3.8 on a NW 6.5 box).
We have tried the directory/username, username@domain and username. We can
only get a request for the user name through Firefox, IE just tells us "You
do not have permission to view this directory or page using the credentials
you supplied" though we haven't supplied any. Some of the things I have
read indicate that this is a proxy issue. I have been unable to change
browser settings to get us into the site. Are there some tricks I need to
do with the proxy server itself?

Now the hard part, my position is more of a "jack-of-all-trades and master
of none" so the answers you give should be couched in terms you would give
someone who knows only enough to be ver, very dangerous. Thanks for your
help in advance.