Hi Joanne Stein - Good question. The classes are not the same. The best practices and theory of Lead Scoring is the same, but the technology is different depending on if you use Eloqua 9 or Eloqua 10. You only need to take the class that applies to you. If you use Eloqua 10, then you'll want to register for the E10: Lead Scoring class. If you use E9, you'll register for the E9: Lead Scoring class. If you aren't sure, let me know and I can verify for you. (Chances are, you use E10, nearly all of our customers do.)
To take the Masters Exam, you need to have taken the Fundamentals series and RPM series. No other courses are required for that exam. (To achieve the Specialty Tenets, you will just take one version of a course - E9 or E10, not both).
Hope this answers your questions. Let me know if it does not!