Decided to get my boot lock fixed today. I was lucky the plastic ears were not broken so didn't need the 'screw fix'. I didn't have a new metal part so resorted to using a small loop I got from an old key ring.
Unfortunately I couldn't get the oem return spring back in position but at least the boot lock is working again. Hopefully the pictures explain better then me! 
http://s1288.photobucket.com/user/ge...how/Rover%2075