As far as I know, only two of the TS exams are currently available (432 and 448) The third of the TS exams (433) is in beta. I think that only the admin and BI ITP exams have been through beta so far and last I heard they were scheduled for release in Nov.
I haven't seen any mention of the upgrade exams at all. Perhaps we'll hear more after the ITP eams are available.
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
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