It means you're Rank Pending. Provisional is someone who has passed the Online, but not taken the Tasting. If you have taken the Tasting, but it hasn't been scored yet, you're Rank Pending. Once your score is done, you will either be Apprentice, Recognized, or Certified depending on your score and judging points. Below 60 is Apprentice and you'll need to take the Tasting test again (with the Online screening through people though, this is rare). Score between 60 and 70 and you're Recognized. Score 70 or higher and have at least 5 judging points and you're Certified. If you score at least 80 or higher on the Tasting and get 10 judging points, you can register to take the Written test to advance to National or Master (with the appropriate scores and points).
Turnaround on getting your ID from Tasting exam is typically relatively quick (usually within a few weeks of the exam). It basically means that your exam set has arrived at the AHA has been scanned and uploaded into the BJCP system for the grading team (although not the same organization, this part is a cooperative effort since the AHA benefits from helping the BJCP out on the logistics).
Turnaround on scores varies a lot at the moment. Target is around 12 weeks (3 months), but you typically don't hear of that target being hit or exceeded, so there's no certainty about how often they hit it. The only thing the average judge or examinee hears is about the ones that take longer. Both of mine took between 5 and 6 months. Your best bet is to be patient and wait between 3-4 months for your score. Judge as much as you can, and build up points. I jumped from Rank Pending to Certified right when I got my scores since I already had the 5 judging points needed.
If you haven't received your scores after 4 months, your best bet is to send the Exam Admin who gave your Tasting and see if he's heard anything. He will have the contact information for the ED that's in charge of grading your exam set (there are typically two graders, an AED, and an ED for each set) and can hit them up. It's generally better to do it that way because the other examinees are probably asking too and the Admin can keep it from being 12 different people trying to hit up the ED.