If it's a 'traditional' style ridge tent you:
Peg out the 4 corners of the inner tent and the bell end (arf arf) (using the 'canvas' holes, not the elastics)
Put a pole at the front (may be longer than the one at the back, if so all the poles will be longer than all the back poles, iyswim)
Put a pole at the back.
Both of these should have a point on the end, which goes through a reinforced hole in the inner tent
You should have two plastic, cylindrical spacers. Put these on the spikes, outside the inner tent, then put the top pole between front pole and the back pole.
Peg the elastics to the ground.
Carefully put the flysheet over the inner tent (you don't want to rip it on the spikes) and peg down (start at the corners again, but you may need to move pegs later, make sure the fly sheet is well away from the inner tent - if they touch and it rains then the tent will leak).
Peg down the guy ropes. You may have little plastic hats for the top of your spikes.
You shouldn't have a v shaped pole ime, you should have two poles made up of two or three separate parts fitted together, and a cross pole for the top made up of three poles probably.