LPN 2 RN HESI-help

I had a 3.9 gpa. I had no problem with my NCLEX (done in 83 questions, that made logical sense~most that is-ha) and have been working as a lpn for over 3 years now. My school says I have to take a hesi before I enter the rn transition program. I have taken the hesi twice and have not passed twice. I did better each time but still did not get the 850 required. The last time I took the test was in the head administators office and afterwards we talked about my frustration. They claimed that I should not be studing the lpn nclex or lpn reviews. They said I should study the RN NCLEX for the rn boards-I really don't get it. Why would I know the rn material when I am trying to become a rn and have not had that education yet. I go to school in MILWAUKEE..you can guess where. Bless all of you that say it was easy...and I'll pray for the most of us that face this highly questionable test...especially that I am a lic.PN and have passed my NCLEX already. What review, for those of you that passed this type of hesi test situation, should I be reviewing? A friend said saunders helped them, but which one the lpn or rn? THANKS this is what I feel like