Hi Caroline, my car is a late 2006 car so should be the same as yours.
Whilst there is a "master fuse" near the battery the additional fuse box Richard is referring to is on the driver's side bulkhead. Lift drivers side bonnet, look down and left and see it near to large heater box.
Regarding rail, nothing should be broken. Don't try releasing the locked pin by pulling the handle, simply push the opened side into locked position and you will be ready to go again. Hoods can be a pain. There is a technique, can I suggest you Google "how to erect a Morgan hood".
Hope it goes ok, let us know.
