You need a gba flash cable/cartridge. This can be found @
http://linker4u.com/pp/item_detail.asp?itemID={A2741ACB-06BD-4B27-8CC8-066369560E77}
Then you can rip your rom off the cartridge to use on the emulator. Legally, you are allowed 1 backup version of your game. In this case, your actual cartridge would be your backup of the rom, and the emulated rom would be the main. Please do not ask for a website to illegally dowload the roms, that is against the rules, and is totally ILLEGAL! (im not saying that you will, lol, just to warn you

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