Yes, you should pay the fee first and open an account, otherwise they won't know what to do with your transcripts and LOR's. Also, you don't need to know which schools you are applying to, but if you know how many schools you can take advantage of the discount. For example, when I registered I figured I would apply to at least 5 schools, so I purchased 5 reports at $10. Now that I'm applying to more schools, I will have to buy more at $12 each.