First of all, try to relax. Second of all, discard that SkyTest or whatever it is you're using. You're getting stressed now for reasons that might not even be of any issue in the actual FEAST (everything will be clearly and well-explained to you), but which might actually cause you harm and impair your ability in the real test (approaching FEAST whilst being apprehensive from the get-go about stumbling across some SkyTest problem that might not even occur in FEAST is a no-no). A great example of why you shouldn't bother with any FEAST "preparatory" software...