As a followup to my post over the summer, the Bitlocker tools which were not working with SP2 have been updated. They are NOT on the Download Center as of yet and are only available internally right now. They will be released on the Download Center sometime at the end of the month as far as I am aware, barring any major setback.
If you have an urgent need for the tools you can call into Microsoft Technical Support and request that they send you the fix which you need. To make sure that you get the proper binaries, reference internal article 2001039 when you speak to an engineer, it will help them find the proper pathing to the files.
Keep in mind that the current KB articles that cover these updates are valid for the usage of these binaries and will not be updated for the re-release of the tools for SP2. I hope this helps.