I did the CD that comes with the HESI book. The content on the test was the same as the CD with different questions. I found that alot of the answers to HESI questions were in the HESI hint boxes in the book as well. I wouldn't use any other resource if you only have a week. I would go through the book and do the CD and then go over your weaknesses according to the results you get from the practice exams and you will do fine!!