I'm guessing you're looking for the answers to the even numbered questions. Since everything I've seen so far says the answers to the odd number questions is in the text itself.
Textbooks may give you the odd answers, but not actually HOW to do those problems. If the question is "determine the electromagnetic inductance through a tightly wound solinoid with 50 turns sitting in a black hole with a 500N weight pressing down at 50 degrees K", and the answers in the back of the book says "6", thats really not too helpful.
And as for actually learning the material, the solutions are extremely helpful. Especially if you have a not-so-great professor. Last semester for example, I had this guy who could care less if anybody knew the material or not. He was at the school for research and they made him teach a physics class. Sitting in class staring at him didn't help me learn or understand what was going on or how it all worked, but reading the book and then being able to go through all the problems helped. I know what I'm doing, I've gone through two semester of physics.
And yeah I saw the instructor edition, but unfortionately you can't order that unless you're, well, an instructor