Photos being renamed, order of photos

Hi, my photographers are complaining that when they upload photos to the site, they are being renamed to "Album Name + Date" This did not used to be the case, what changed? In most cases they already had the file name as what the photo was and are frustrated that they have to rename all the photos again.

Also they are asking why there is no manual photo sorting option, or any sorting option other than oldest to newest or newest to oldest? Every photo site does this as well as facebook and twitter.