Your link is broken.
Go to the URL I posted above and use that as a starting point to research the answers to your questions.
Also, if your car is fully stock, look in the driver's side door jam for a sticker that details the month/year manufactured, model, VIN and a few other specs. You could also use that VIN to do a Carfax and find out some history of that specific vehicle. The VIN is also listed in your dashboard, driver's side, towards the bottom, where the dashboard meets the windshield. I'm not sure about Australia, but in North America, Carfax is generally the "go-to" place for vehicle ownership/history.
Another thing you could do, is open the Hood
and research what is written on the engine plastic covers. For 7th gen Celica, you will probably see either VVT-i or VVTL-i: https://www.celicahobby.com/forums/ubbthreads.php/topics/43603/What-is-VVTL-i.html
I'm not familiar with the specific naming conventions/variations of Celica sold in Australia, but if I had to do the research, the points I listed above would be where I'd start at.
Good luck with your new Celica and I hope you have a lot of fun with it. It's a great little vehicle and is always a head-turner