When you look at the study guide you might think "what, this is it?" but study it! That is really it. The study guide will prepare you as to what to know for the exam. As for what to focus...
I am applying to the May 2009 Cohert for NJCU. I haven't taking the HESI yet, soon...good luck to you and I hope we will be seeing each other!! I read posts from last year it seems like we won't...