Hi had the same problem when i pick up a second hand 2002, with only a key that fits the drivers door and ignition, hense no boot key. ok first off climb in to the boot i.e over back seats gently pull the the panel off the bottom off the door. comes of very easy. now at the bottom left hand side you can see the lock mechanim, just lft with one finger, and you boot is open. they are lots of ways you can rig up a pull cord till you get it fixed. Just don`t leave things to visible for people to see.