Download the software (for windows only) here - flashcart.exe
FOR THIS SOFTWARE TO WORK, YOU MUST CHANGE THE PARALLEL PORT SETTING TO EPP (EXTENDED PARALLEL PORT) IN YOUR COMPUTER'S BIOS SETTINGS
If your game is not working (garbled logo text or white screen), try using gbafix
gbafix is a command line tool. Double clicking on it will not work. Put gbafix.exe and your game in the same folder, open a command prompt (click start, then run, then type cmd and press enter). Navigate to the folder where gbafix.exe and your game are, and use it like this: gbafix -tTITLE FILENAME.gba where TITLE is the name of your game, and FILENAME.gba is the filename of your game.
To save and restore the SRAM, use this program - sendsave
Sendsave works with the included cable
512flashcart.rar software for the 512mb cartridges with the parallel cable
512_USB.zip software for the 512mb cartridges with the USB linker