The configuration screen is a text (DOS) style screen but there is also the server manager which is a Win style GUI (as well as text style) accessed via web browser. Maybe that's what you are really looking for.
http://www.yourdomain.com/server-managerAnd please do what everybody suggests, Read the Manual. It is available on line at contribs.org site and mitel.com.
...and learn to search these forums (show all posts), there is a wealth of information here, many topics have already been answered.
Regs
Ray