yea real easy. ust gotta press the brake/accelerator a couple times and lock/unlock the doors in a weird sequence and 'jobs a good'un' :D
This only works on the IS200 with factory alarm system.
The Altezza does not have a toyota alarm, so this doesn't apply.
My Altezza had a Clifford alarm, so I don't know about the specifics of the Toad system, but I doubt it's very different
I only had one key when the car was imported, which had a central locking button on it.
Once the alarm was installed, I could still use the Toyota key to lock/unlock the doors - but it would not alarm the car - I had to use the button on the key fob to lock and alarm the car.
Unless the guy who installed your alarm is very clever with electronics, I would guess yours is the same.
If you need extra keys, get one cut at a key bar (£10), and get a spare Toad alarm fob (maybe another £10) from any Toad supplier, who will be able to program it for you.
Ian