No, I hadn't done that yet. When I did do the "apt-get update" this is what i got:
debian:/home/davep# apt-get update
Ign cdrom://[Debian GNU/Linux 5.0.0 _Lenny_ - Official i386 DVD Binary-1 20090214-16:54] lenny Release.gpg
Ign cdrom://[Debian GNU/Linux 5.0.0 _Lenny_ - Official i386 DVD Binary-1 20090214-16:54] lenny/contrib Translation-en_US
Ign cdrom://[Debian GNU/Linux 5.0.0 _Lenny_ - Official i386 DVD Binary-1 20090214-16:54] lenny/main Translation-en_US
Ign cdrom://[Debian GNU/Linux 5.0.0 _Lenny_ - Official i386 DVD Binary-1 20090214-16:54] lenny Release
Ign cdrom://[Debian GNU/Linux 5.0.0 _Lenny_ - Official i386 DVD Binary-1 20090214-16:54] lenny/contrib Packages/DiffIndex
Ign cdrom://[Debian GNU/Linux 5.0.0 _Lenny_ - Official i386 DVD Binary-1 20090214-16:54] lenny/main Packages/DiffIndex
Ign
http://gulus.usherbrooke.ca stable Release.gpg
Ign
http://gulus.usherbrooke.ca stable/main Translation-en_US
Hit
http://http.us.debian.org lenny Release.gpg
Ign
http://gulus.usherbrooke.ca stable Release
Hit
http://security.debian.org lenny/updates Release.gpg
Ign
http://security.debian.org lenny/updates/contrib Translation-en_US
Hit
http://volatile.debian.org lenny/volatile Release.gpg
Ign
http://volatile.debian.org lenny/volatile/contrib Translation-en_US
Ign
http://http.us.debian.org lenny/main Translation-en_US
Ign
http://gulus.usherbrooke.ca stable/main Packages
Ign
http://security.debian.org lenny/updates/main Translation-en_US
Hit
http://security.debian.org lenny/updates Release
Hit
http://http.us.debian.org lenny Release
Ign
http://volatile.debian.org lenny/volatile/main Translation-en_US
Hit
http://volatile.debian.org lenny/volatile Release
Ign
http://gulus.usherbrooke.ca stable/main Packages
Err
http://gulus.usherbrooke.ca stable/main Packages
404 Not Found
Ign
http://security.debian.org lenny/updates/contrib Packages/DiffIndex
Ign
http://volatile.debian.org lenny/volatile/contrib Packages/DiffIndex
Ign
http://http.us.debian.org lenny/main Packages/DiffIndex
Ign
http://security.debian.org lenny/updates/main Packages/DiffIndex
Ign
http://security.debian.org lenny/updates/contrib Sources/DiffIndex
Ign
http://security.debian.org lenny/updates/main Sources/DiffIndex
Hit
http://http.us.debian.org lenny/main Packages
Ign
http://volatile.debian.org lenny/volatile/main Packages/DiffIndex
Ign
http://volatile.debian.org lenny/volatile/contrib Sources/DiffIndex
Ign
http://volatile.debian.org lenny/volatile/main Sources/DiffIndex
Hit
http://security.debian.org lenny/updates/contrib Packages
Hit
http://volatile.debian.org lenny/volatile/contrib Packages
Hit
http://security.debian.org lenny/updates/main Packages
Hit
http://security.debian.org lenny/updates/contrib Sources
Hit
http://volatile.debian.org lenny/volatile/main Packages
Hit
http://volatile.debian.org lenny/volatile/contrib Sources
Hit
http://security.debian.org lenny/updates/main Sources
Hit
http://volatile.debian.org lenny/volatile/main Sources
W: Failed to fetch
http://gulus.usherbrooke.ca/pub/dist...-i386/Packages 404 Not Found
E: Some index files failed to download, they have been ignored, or old ones used instead.
debian:/home/davep#
Looks like it cant find the "gulus" address???/
-Dave