Thanks for the replies everybody!!

. I am getting more used to the controls now.
The car had to go back to the garage because a cable from the wheelchair lock wasnt secured probably. So after that little hiccup I got behind the wheel again and found a little industrial estate that was quite close and have been trying parking, reversing and three point turns (although three is a bit optimistic at this stage)
My main trouble is co-ordinating steering and braking at the same time but I guess that will just come with practice.
I did go for an assement at the Regional Driving Centre in Birmingham and tried the various controls - the push/pull brake and accelerater didnt work for me because I found it easier to have both hands on the wheel so the assessor recommended the accelerating ring on the steering wheel.
These things come to try us, we have all had to get used to much bigger changes in our lives!! Once I get used to it, it will make so much difference to my life being independent and going out whenever I want (well after the carers have come to get me up that is

)
Thanks again for the advice - its good to know there are people out there who have gone through the same kind of things
Anne