Account Tracker 1.2 (for Windows Phone) is now available
This is a minor update to fix a Microsoft bug that corrupted files downloaded from SkyDrive. I have tested this and it now seems to work fine.
Note that you might need to delete any files that you have already downloaded to the app from SkyDrive, before re-downloading them. It was the download process that was broken, nothing to do with the files themselves.
If in doubt, please ask!