Peggy the second you book you the administrative cancel fee is in effect. If you cancel after the 120 day period when the normal cancel fee of 20% would apply and the administrative fee WOULD not be added to that penalty.
Actually the adminstrative fee changed for the 2009 Mariner world cruise - the Ring of Fire cruise. THe fee is now $100 for any category. Here is the policy now I copied this from my web.
WORLD CRUISE CANCELLATION POLICIES
Cancellation fees will not be waived by the Regent
2009 World Cruises - Voyager and Mariner
Regents new administrative fee for cancellation after booking
Bookings cancelled more than 120 days prior to sailing will incur a $500 per guest administrative fee in categories MS to B, and $250 per guest in categories C to H for the 2009 world cruise
Grand Circumnavigation on Seven Seas Voyager.
Bookings cancelled more than 120 days prior to sailing will incur a $100 per guest administrative fee in all categories for the 2009 Mariner World Cruise.
Ring of Fire Cruise on the Seven Seas Mariner.
THE DATE REGULAR CRUISE PENALTIES ARE APPLIED IS IS ON THE TOP RIGHT HAND CORNER OF YOUR BROWN AND KEENE INVOICE
CRUISE FARE
Cancellation Fee per person
Prior to 120 days - Applicable Administrative Fee
120-91 days, 20% of the fare
90-75 days, 50% of fare
74-0 days, 100% of fare
AIR AND LAND ARRANGEMENTS
Can be cancelled up to 61 days in advance
of departure date for no penalty
60 days before departure air and land are
subject to a 100% cancellation fee