I derped really hard and thought that you could update a map by finalizing and re-uploading.
https://knucklecracker.com/forums/index.php?topic=18408.0
Could someone look into this and maybe merge the new map into the old slot if that's how it works?
Otherwise shucks, sorry guys, didn't mean to do that.
There is no way to update or change an existing map (it would invalidate the existing scores). All you can do is upload a new verson (maybe label it as "version 2" in the title/description).
http://knucklecracker.com/forums/index.php?topic=18408.msg130113#msg130113
Someonce should make a sticky topic saying that reposting does not update maps.