There is an easier non-obtrusive way to do it. Search for a program called Stardock BootSkin. Install the program and load as many bootscreens into the program as you want. Pick a screen, it loads, reboot and for here on out you will have whatever bootscreen you want without messing with your bios. Oh, the program is free

I have my BIOS logo, background, and bootscreen all the same, looks pretty cool. I wish I could just get rid of the damn windows "windows is starting up" screen."