Unlike New Item Submissions, Edits don't show up right away, it goes to a special section of the admin panel and one of the mods has to approve it. It's safety feature, so we don't end up with some A-hole going in changing all the info on games without us knowing about it. Sometimes it takes awhile for us to approve edits, depending on the time of day and such.
If it takes a longer time than normal, let us know. But for the most part someone is always checking the admin panel. Between all of the mods, we have folks from all over the country (and Canada and Mexico) approving things.