User blog comment:SnowedLightning/A Message From The Management/@comment-3234762-20110827215311/@comment-24024274-20110827221146

The only ones that were deleted were the ones that were old. Say if you uploaded three versions of a file named "Blah". If you have one called "Blah 1", "Blah 2" and "Blah 3". If "Blah 3" is the one on the charart for approval / approved charart page, then the other two files would have been deleted.