After a number of users reported issues with locating the files they have saved from the editor, I went in and changed some stuff around to hopefully solve this issue.
One problem I had with fixing this was that it worked fine on all the PC's I've tested it on, so I, myself, can't know for sure whether this problem is fixed or not. My only idea is that some computers didn't automatically add the file extention *.PLE to the files when saving them. If this was the case, the file loading system wouldn't show those files, thus causing the issue.
I've gone in and forced the file saving system to add the file extension no matter what the case is. Hopefully now you'll be able to save and load things correctly without losing all those beautiful levels.
If it still isn't working, let me know somehow (preferably commenting on this post) and I'll keep working 'till it's ready.
Thanks for your kind words about the game so far!
- Daniel