I use the one from my old Mazda6. Fits perfectly and is plenty strong enough for the Zed. Alas none of the other old jack's I have fit the points properly, or you could have one
I went to my local scrapyard and he had hundreds of jacks so after a little rummaging around to find a bmw one I got one that was in mint condition and all for the rather high price of £5! what you want is one that has a rectangular pad on it that fits the jacking point under the car.
I secure it in the boot with the Velcro straps that are there (e89)