Final Fantasy Hacktics

OK, I am new to hacking final fantasy tactics, and new to this site. I had a few questions about the FFT pacher/editor thing, that edits SCUS_942.21 file. I made a BIN file with my FFT disk. It works perfect. I open the modder -> do the modding, and try to export, but it needs me to export to a SCUS_942.21, witch I am sure you are familiar with. Anyways, I have CD mage, but I'm not sure what to do. Have any tips/help?

Since you have a .BIN file, use MagicISO instead.
http://www.magiciso.com/download.htm