You just need someone to help you with it.
Everytime I've used pre-pasted stuff, I've bought the special glue (activator) to make it less messy. If you're putting the border up against wallpaper, there is a special glue for this, if not, the regular activator will do. Also, if you're putting it on over paint, size the part of the wall that the border will cover so when you want to take it down, it will come down very easily. You don't have to be perfect with the sizing, just don't go above or below what the border will cover.
Hmm, how to explain this? For booking purposes, book it in managable pieces and then flap them so you are left at the end with something that resembles the petals of a flower... booked piece, droop, booked piece droop, etc.
Whatever you do, you don't want to cut a border unless you have to. You'll need the other person to hold the books and droops while you place the open piece onto the wall.
Borders are very easy and spruce up a room very nicely.
Good luck with your project and let us know how it turns out!