I have just had a new lockset fitted and keys programmed for my Mk2 Punto (new style 2 blude key immobiliser system) by Mark at Marlow Motors, 41 Morland Rd, Sutton, 020 8643 7623 for less than £180 (about half the price charged by a Fiat dealer). He has all the appropriate kit to do the programming of the keys into the ECU and is really helpful.

did he show you how to program the new remote into the central locking? i need to know how to do it.

My car does not have a remote, but as I understand it, it is a similar process to programming ordinary keys (ie you need to have the special computer plugged into the car computer in order to enter the relevant codes and get the one to recognise the other). If you are anywhere near Sutton Mark will do it for you in 5 minutes.