I extracted the Arduino IDE to a folder on my desktop. In the path C:\Users\admin\Desktop\arduino-1.0.3-windows\arduino-1.0.3\hardware\maniacbug-mighty-1284p-68ed99c I have a boards.txt file and within it there is the following section
BTW, I don't know if this matters, but I believe maniacbug said to locate the 1284 bootloader
files in the Arduino "sketch" directory, not the Arduino IDE directory, which is what the above
seems to indicate [maybe].