1.Revert back to the Default Style
2.# Upload all new files from a download of the full 3.0.4 version, except for config.php, the /images and /files folders.
# Go to yoursite.com/forumfolder/install/database_update.php
# Let that run and then delete the install folder.
# You now have a new up to date board.
3.Download the Updated Version of your Vista Style and enjoy