where can i find the plug in my car 2 put it 2 the coputer its an x reg 2000 model

According to the Sykes Pickavant website it's to the right and low down of the steering wheel.
It's probably behind a removable plastic flap.

Hello Carl

The plug is in with the fuse box remove the cover which is down to the right of the steering column
you will then see the fuse box and the plug is just below that

Hope this helps phil