Pokemon Fire Red Won't play... PLEASE HELP

It keeps saying "the 1M sub-circuit board is not installed" What is that and how do i get it?

That's a warning that the Flash memory is set to the wrong setting. Either use the vba-over.ini technique mentioned in one of the sticky threads (if vboyadvance is what you're using), or manually set your flash size to 128K.

https://www.romulation.org/forum/index.php/topic,6326.0.html If you're using VBA.