Updating BIOS For Windows 7 Install?

I want to say that this computer has the Windows 8 beta on it as its only OS. It's very clunky and full of bugs and whatnot and I want it off so I'm putting windows 7 on it and erasing everything on it. This shouldn't be a problem for these forums since everything I"m having problems with has nothing to do with the OS. Besides installing. now, basically this computers main parts are better than my own (it's not that great anyway) It's motherboard is x65 bit, it had 2 gb 800 mhz ram (my computer had the same amount but only 667mhz) it's processor is 3.00 GHz (mine is 2.3 GHz)So basically it's a better computer for the main parts. I've not looked at the PSU but I'm sure it's better aswell. The only thing that isn't better is the graphics card. It's a 7 series while mine is a 9. So, basically I want to put the best of my computer to this better one. Mine feels newer (since I keep it dusted so it sounds really smooth, while this one sounds a bit old. But either way I want to install windows on it. The only problem is that the BIOS is inoperable. When loading into the BIOS the keyboard no longer seems to work. Its light go off. But every once in a while on trying, I can get it into the boot menu so I can move it to put from CD rom. But at this point, no matter what, it won't let me scroll through the options.So naturally I went to google and came with some results that it could be the BIAS needing an update OR taking the CMOS battery out and allowing it to load default values. I tried the latter first, overnight actually. This brought it to default settings, but no luck. It didn't help the keyboard. Now, I'm on the "update BIAS" part. But I can't even seem to find the right update for this motherboard. I tried installing CPU-z but this Windows 8 needs framework to run the software since it's not made for W8. So I just look around on the MB myself and find the Model Number. It's D33C98. I googled it and mostly game up with Gigabyte results but I can't find BIOS updates for this model anywhere. I see manuels but I can't find much of anything for this MB.I thought about just putting the HD in my current computer and loading windows 7 on to it and putting back in the other one so I could just use my computers BIOS, but I've heard this isn't the best thing to do.