I'm repainting a bedroom, and after removing a couple layers of wallpaper, found that the first layer of wallpaper was put up without a coat of paint or primer. When I tried to remove it, it pulled up some of the backing paper. So now I've got some seriously crappy looking wallboard. I'm having problems getting spackling paste to stick, too.
1. The patch stuff I'm using is "spackling paste", but at the hardware store, they sell another product called "joint compound". What's the difference between these two products? Am I using the wrong one?
2. I laid down a coat of primer, hoping this would firm up the layer of paper enough that I could sand it. Was this a dumb idea or a good one?
3. Should I just rip out the old sheetrock and start over, or is there hope for a smooth wall with a reasonable amount of effort?