Need help plumbing my nitrous kit

Hey guys I need some help from the nitrous expert. You guys need to scoop down to NEWB level for me real quick. I got this nitrous kit for a good deal, its a NX wet kit, it basically came with the bottle, the shark nozzle, the solenoids, the jets, and a purge solenoid. It also came with a couple lines but I purchased it with the knowledge that I was going to need to buy the supply like from the bottle. That being said I thought this was going to be cake, but its turning out to be a little confusing. Unfortunately I dont know exactly what kit I have and I have downloaded the NX wet kit install PDF but hasnt helped me with the plumbing part because I guess its easier if you buy the kit new to see where everything goes.

I have tried to contact this guy again after purchasing the kit with these questions and he has not gotten back to me.

(Also, how do I read the jets? Do the jets have the numbers they are stamped on them? Because they guy sent them to me like in a container labeled what they are, but the numbers on th jets dont match the numbers he had labeled on the box. How can I find out what they really are, and which NX recomends to use for each HP level?)

Here is a pic of what I have.
If you look at this pic,
#1 is the purge solenoid connected to the N20 solendoid.
#2 is the fuel solenoid with a FP gauge on the -in side of the solenoid.
#3 confuses me, I posted up close pictures below. It is a metal line that has a bubble at the end of the line and in the sellers picture it was attached to the N20 solenoid on the -out side of the solenoid, guess that goes to the shark nozzle? The bubble fits in the solenoid perfect as well(as pictured below), but why would a metal line go to the shark nozzle? and why would he cut it.
#4,#5 are small -4an supply lines.
#6 also confuses me because it is a small line, the has what looks like a -6an fitting on one side, and an even bigger fitting on the other side.