So sorry to hear that mate, gutted for you too. I know the feeling... I had two XR400R's stolen, and one of those was only six weeks old. :(

How much did you pay for her? I know you'll lose your excess (which can be a lot of dosh), but if you send a copy of the receipt to the insurers they will have little grounds for offering you any less than you actually paid for the bike with it being only five weeks since you got it. Don't accept their first offer - they always try to beat you down on the value to start with, it's standard practice. Argue the toss (supported by adverts of bikes of similar age & mileage) and hold out for the best settlement you can get.

Good luck buddy, and I hope you find a nice replacement soon.