SQL 2000 – PROCESSOR MODE OR PER SEAT

We just purchased sql 2000 for an application. We will have 30 users accessing the applications. We purchased 30 licenses for sql. I am confused about the licensing setup. I chose per seat. Now I am wondering if I should have chosen per processor. The server has 1 processor. This is different from sql 7. I always chose per server on sql 7 and I would have put in 30. I don’t think you can put in 30 on per processor. I would like to know if I did this wrong and I can correct before we get too farinto this project. Thanks.