I also noticed what atordo was talking about. I went into the binary with a hexeditor and changed things around to organize it a little. I did not change anything else about the game. You can find this version in the attached gtkMines-edited.zip
I also wanted to make the game look a bit easier on the eyes, so I edited the images a little. This version can be found in the attached gtkMines-clean.zip
I am very happy with how it looks now. You might not like the flag, though. In this case you can replace flag.png with flag1.png, or the original version.
This is how it looks now: