Well, your probably wanting to know how to apply an IPS patch to a file.
Well you've gotta download lips Lunar IPS. You'll find it on google, then double click on the IPS, then apply it to a file and your done. Then use an emulator on the GBA file you appy it to. Also remember to look at what it's a hack of, like Shiny Gold is a hack of Fire Red. And also make sure an IPS patch gets applied to a clean GBA rom.
I'm a total idiot when it comes to hacks, I don't have any clue. I can see downloads for shiny gold beta 5, but I don't know what they really are or how to use them. To me it seems like a online game but... I'm just so confused.
If you feel like explaining it, please do. If not... I'll live ^ ^