You may want to use the Download Director rather than FTP. Not only it checks whether the fix you downloaded is OK (meaning, it's not a bad/broken file), but it also downloads fast! Neat.
Maybe you have encountered searching for a fix at Fix Central but a webpage with a disappointing message appears that says "An error occurred." Well, it may be true, or not! Click again the link of that fix for several times. Maybe it will be available again!