How can i fix my door and boot locking problem?

I have a ford mondeo diesel 2.0 on a 51 Plate, The fault started with the boot opening when driving and went on to the boot opening when turning the ignition on , Now I have had to remove the connector from the boot so the boot has to be opened with a key. That was fine for a bit until now when you open the doors (Central Locking) the doors lock them selves instantly and i have to open them again and when driving down the road the doors lock and unlock by themselves ,

Any help with this would be gratefully appreciated

Many Thanks

Steve
January 2009