Hi Paul.
This is actually part of the wireless forum, but I believe if you point a browser (like Internet Explorer or Firefox) at the address of your ASA you should get a GUI for config and management.
I don't remember the default (factory) assigned address, but I think it's something like 10.0.0.1/8 or 10.1.0.1/8 ... something like that.
Good Luck
Scott