Originally Posted by Easyrider
Plain goes on much better and easier than prepasted.
By "plain" I assume you mean unpasted. Even if it is prepasted, you can still use paste on it instead of the water soak method. And you are right, pasting yourself is much easier to work with and will stick better. One thing I have learned, as some others have mentioned, always thoroughly clean the wall surface before applying the new paper. Takes a little time but eliminates a lot of frustration.
One other piece of advice: buy a seam roller to make the seams and edges stick tight. It's just a small round cylinder with a handle that you roll over the edges of each panel to prevent the edge from lifting. After you hang each piece, use a very wet cloth to wipe it clean of paste before going on to the next one. Once the paste dries, it is nearly impossible to remove the residue. And rinse the cloth frequently.