There is no online editor for files, you have to download to edit.? Then you have to delete the existing file before uploading the changed file unless you change the file name.? Duplicate file names aren't allowed.? It will look like it's uploading, then give an error message.? There are changes planned according to the TODO list, but no time frame.
I suspect those files with the weird content were some that couldn't be copied due to a Y! error.? Only Mark would know for sure.
Duane
Duane