I'm the husband who did all this, so I'd like to clear things up. We removed all of the wallpaper using DIF wallpaper remover. Then, because there were places where the wall surface was damaged, I leveled them with drywall compound. After that had dried for about a week, I used PrepRite 400 from SW to prime the surface. This is a latex product and we used latex paint over it, again SW SuperPaint. Thanks for your help.