I recommend Jon Kabat-Zinn's books for introductions to mindfulness/meditation. He has some guided meditation audio tracks on youtube I believe.
Edit: Honestly, with regard to the negative feelings that come with binge-relapses: that is one of the primary reasons to not PMO in the first place. I too am totally shit in dealing with the despair you get after relapse. So, you need to figure out how to keep yourself off of the "waterslide" of relapse, because once you get on it it's hard to get off (and then you've just PMO'd 12 times in a weekend, and feel like shit). I recommend le_petit_moster's hack book for reprogramming your mind away from even beginning to give into thoughts of relapse, since once you start feeding them you you're on your way to relapse.