Thank you for your response, only just saw it for some reason!
I did one extra day on attack and went straight onto cruise which seems to have worked okay. I haven't shifted at all, not even one ounce, in 3 days but I'm hoping that by saturday (normal weigh-in day) I will have lost something!
Thank you for your advice

Sweat like a pig, look like a fox
August 13th 2012: 202lbs (starting weight)
Christmas Day 2012: 169lbs
New Year's day 2013: Starting the Dukan Diet at 169.8lbs
1 Feb 2013: 160.4lbs