So that's what's up with that, I think I forgot: specified keywords need admin approval. I knew this before but forgot.
You must wait for "awaiting for approval" message to disappear or you could lose an upload.
With updated items from what I know they actually do change position once you press post an update, but the download must be edited (edit the download) for newer item-upload, or you might be asked why have you uploaded this twice? (Watch this note from the admin Garrett in case that has changed).