Thought I was nearly there!
Uploaded a test CCcam.config file, which updated fine and showed me connected to a couple of test peers.
Amended the following Oscam files via the webif (IP:8888) .config, server, services, srvid and .user. During this process I did what I thought was the sensible thing and changed the oscam user id and oscam admin id and passwords in the above files. I think restarted Oscam and was given a user name and password request box.
However, none of the combos work (either of the 2 new ones or the default admin/admin).
Which should it be? Can I get round this? Are there any restrictions in captial/lower case letters, symbols, numbers etc that might have caused me to bugger it up?