Alan
The Tribunal Decision re-makes the Decision that you appealed and applies from the same date, your new claim made a new Decision that post-dates the original one and therefore the Tribunal Decision as well, so it the Enhanced Daily Living award that will be carried for.
However, the new Decision creates a new right of appeal, so you can request an MR and if necessary go on to appeal again, you can use the Tribunal Decision as evidence that a Mobility award should be made, although you will need to show that there has been no change in your condition since the original Decision was made.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
