How to go back to iTunes 8.2.1 for WindowsI've tested this method on two of my computers (both 32 bit XP), including one with a fairly large library in iTunes, and seems to work okay.
1. Deallocate computer--in iTunes, choose "Store" -> "Deallocate Computer". Follow the prompts until you get the deallocation confirmation message, and then exit iTunes.
2. Uninstall iTunes. (Add/Remove Programs in Control Panel)
3. Uninstall QuickTime. (Add/Remove Programs in Control Panel)
4. Download iTunes 8.2.1 for Windows here:
http://support.apple.com/kb/DL9285. Find the iTunes Library.itl file. On Windows XP, it should be under My Documents\My Music\iTunes. Delete it.
6. Now look for a subdirectory called Previous iTunes libraries. Open the directory, and find a recent library backup file. Copy it to the My Documents\My Music\iTunes directory and rename it to iTunes Library.itl
7. Install iTunes 8.2.1.
8. If you get a message that the iTunes Library.itl file was created with a more recent version of iTunes, repeat steps 5 and 6, with a slightly older file.
9. Open MediaMonkey and test it with an .m4a track.
JoeG