If your company uses any Nortel gear, you should be able to get Nortel Technical Publications (NTPs) through your local support folks. Alternatively, you should be able to get a user account through Nortel (approved by your support manager) to give you access to documentation online. The website is bad overall and lacking in documentation you've probably come to expect as standard from Cisco et al. Getting info is like extracting blood from a stone, even when you know what document it's in. I'd push REALLY HARD to get regular updates of NTPs/Release Notes delivered to you on CD. For the price of 6400/7400 in the current market, Nortel ought to fly customers to Canada 1st Class to pick up freshly burned documentation from the factory! Not that I'm bitter about bad support from Nortel.... ;-)