Need help installing springs

Need help installing springs

It's been a while after I bought my springs. They've been sitting in my trunk for 3 months already. I finally decided to put it on ASAP after being so lazy (it's my nature, cant help it. lol) to find a place to have it installed. I think those shops charge me too much for doing that. So I decided to put it on myself. (I like doing this kind of stuff actually, I think it's fun, and also, I can learn something). This is the DIY. I read it already.
http://www.2003corolla.org/diy.php?diy=14
I am a total noob doing this kind of stuff.

These are my questions.
According to the DIY, since I have Tein S-tech, I will have to cut my bump stop. But where's the bump stop at?? It wasnt shown in the DIY.
I have a XRS, so the back seat doesnt fold down. So how do I remove the back seat??
And what happen if I dont cut the bump stop??

But how?? Just pull it??

hmmmm... I don't think you need to cut the bumpstop. If you look at the DIY, it mentions in () progress tein's only.Are the S-Tech progress springs?

Doing this very soon. But I have a question,. Is Allen wrench same as hex key??