You have to grant yourself access via the Server Docs in the Admin Client go into the CONFIGURATION tab and look at the server docs for your servers. You will need to grant yourself FULL-ACCESS in order to start working on it. Everything in Lotus is attached to your ID file, so if you have his old ID file and password you would log on that way and edit the server docs. The best thing to do would be to find a local consultant and have them come help out. Lotus911 could help with that.
you can email me and I can either help you or get yo in contact with a local person to help.
david dot vasta at gmail dot com