HEY DON'T SHOUT!!
(and only one topic is needed, we'll help ya all the same!!)
Right, what the instructions are telling you are to join the little hoses together, so the flow can go out of one into the other. If you can't find anything that'll do it, get either a bigger hose to go over the outside, making a 'sleeve' and hoseclip it up, or a smaller hose to go inside... and hoseclip it up...
If you havent got 2 pipes, just block one off and go see another bod who's got a similar one fitted...
If you start the car, fire and brimstone will no reign on you, all you'll get is poor running, a bit of a handful on the clutch and it might stall a bit.
There.
