Heaven Beside You

I know this isn't an Alice In Chains forum but I'm learning Heaven Beside You and I thought maybe some of you could help me out with a couple of parts.
I have the tab book and it's kind of confusing me because it says in the chorus on the last time around I play a D5 and an E but that doesn't seem right to me. The chorus is A, G, C, B and then it goes into the bridge.
Can anybody help me with this?
Also does anybody how to play that riff right before the 2nd verse and the last chorus? I watched the you tube video of the band playing in live and it looks a little different than what the book says. I know not all tab books are correct but I got a Hal Leonard book which has a very good reputation.

Thanks