Ok, I have completely rewritten the source code to actually make it possible to add features (The old code was a mess!)
Important changes:
Files now save as ints! Meaning you have to load 4 bytes for every tile
This allows for much larger tilesets that are not limited to 255 tiles. (I may write a small C++ library to give a save ad load function)
You also now have evnts and NPC as available maps.
This build is overall much faster I believe as well.
Coming soon:
The ability to open new windows for other tilemaps within the program.
More optimizations as to the number of tiles drawn at one time (right now each tile is drawn each frame)
Export to calculator format (is there a program that can do this to a binary file or a text file?)
I have attached a zip containing the source as well as the old and new builds. (Hopefully the file is small enough) :S
Edit: It's not. I'll just upload it to dropbox (Though I wish I could see how many people download it)
http://dl.dropbox.com/u/10573921/Tile%20Map%20Editor.zip