There are 3 types of pitching
1 - inner first suspend the inner from the poles then throw the fly over the top
2 - Fly first usually the poles are in sleeves and then hang the inner.
3- Put the two up together
Some tents will do all three - multi pitch ie Macpac microlight
The advantage of 2 your inner doesnt fill up with water if it is raining heavily.
I have 2 tents they are both fly first - or together. Wilderness Equipment First Arrow (2-3 man) & Macpac Microlight (1 man
I usually keep the the microlight together but if I am packing up and it is very wet I will pull the inner down first.
Other tents that are fly first
Wilderness Equipment Second Arrow (2 man)
Wilderness Equipment tents are readily available in Australia.
This site gives some good overall points about tents and what to look for.
http://www.bushwalking.org.au/FAQ/FAQ_Shelter.htmRoger