The Aussie site had this step by step for key fob setup.
To use the links you must register on
mdocuck.com.uk
1. Locate the diagnostic (data) connector. See Lewis' post in this thread:
http://www.mdocuk.co.uk/forums/viewtopic.php?t=23953
Pin numbering is:

- pinsj.png (18.23 KiB) Viewed 884 times
2. Turn ignition switch to ACC
3. Ground terminal 1 by linking to terminal 4 (paper clip worked well)
4. Turn ignition switch off then back to ACC, then off again. Door locks cycle.
5. Press the lock button on the fob three times. Door locks cycle
6. And again for other fobs
7. remove paperclip
8. Ignition switch off
9. Remove key and test your newly-coded fob.
Took five minutes!
points:
Old coding is wiped, so existing fobs also need to be recoded
More than two fobs can probably be coded
It may be possible to identify the sensor type by looking through the ashtray hole: I'll post pictures later
New fobs are now much less expensive from Mitsi: around £60
I still need the case only for a "two grey buttons" fob as this part number is no longer listed. Any offers?
Thanks all