These are the instructions i gave to a newbie with the same style tent earlier on. That tent was a two bedroom pod , but basically the same style .yours is a 3, so you'll have more poles, for the 3rd bedroom.
Tent instructions are noted for being brief and almost useless anyway, sometimes they are only a diagram. here's a basic guide to get you started, apologies in advance if i've stated anything blatantly obvious, but I didn't even know what the flysheet was when I first started. (It's the outer cover of the tent)
get the poles out and assemble them ready. they may,or may not be colour coded, If they have different coloured ends, the colours will correspond with the ends of the sleeve channels on the flysheet.
lay the flysheet out, with the sleeves for the poles to thread through on top.
If its windy, peg the corners down.
There are 6 poles, the 2 longest are for the centre and cross over each other hot cross bun style to form the main dome.
The next 2 longest will be for the sleeves closest to the main dome and
the shortest 2 are for the 2 outside end sleeves
Thread all the poles through the sleeves, pushing them gently, don't pull or they will come apart again. The fabric will bunch up, it won't lay flat on the ground. Just get the ruffled up bits as evenly spread along the poles as you can
On the bottom of the flysheet there are rings, like keyrings, with pins attached. These pins insert into the bottom of the poles. Then you peg through the rings to secure the tent to the ground.
starting with the two crossed over centre poles, insert the pins into the poles, with one person at either end of the pole.
it is useful to have someone get under the flysheet to hold these two poles up,and take the weight off, and makes it much easier to get the pins in.
Hook the roof vent cover in place before you hoist the dome up, you may not be able to reach it later
Put the rest of the pins in the poles
Go inside the tent and see if you have tension straps laying flat on the ground. These should be as straight as possible and parallell to each other and flat to the ground to give the correct shape.
when you are happy with the shape, ie it's all straight and stretched out, peg the rings down and check that the door zips open and close easily.
Peg out the guylines and all the pegging points on the bottom of the flysheet.
Hang the bedroom inners and peg the corners down, starting from the back corners.
Peg the groundsheet down, making sure that no groundsheet is sticking out from the flysheet or water will run in to the tent.
TOP TIP- Buy a builders tarpaulin from B&Q for about £6, and lay this out under the tent, gives a clean dry surface to set up on and pack away on. keeps your bedroom inners and groundsheet clean, just make sure there's none of it sticking out under the fly, tuck it under or cut to size slightly smaller than the tent. Hose it down at home and dry over the washing line.
One more thing, when knocking the pegs in, place them at an angle of 45%, don't put them in straight down, they won't hold properly.