Gearbox help

[craig]

Key works as normal goes in turns on and cranks if I leave key and try to take it out in any other position other than park it won't come out as normal.. I get my parking sensors when in reverse working as normal as the back end is up against the garage wall I can turn it over in park do you know difference between oval black plug on f125 switch and the round plug as in the extra pins and what they are for doing my gearbox swap the have diff pugs I've used the plug from gearbox that happened to go bad as for the gearbox I put in it has oval plug but because of engine wiring loom had to use round plug.. I've got the loom from other car that the reconditioned gearbox came from at cost of 2600 quid so rebuild but what would I be missing as connector has 10 pin as apposed to 8 on round plug