Older MBP function keys in the wrong place

[NoCleverName]

Greetings all! About a year or so ago, I bought a used 17" MBP. In the 2008 era for MBP's. The guy had taken a knife and cut out the area around the place where a CD goes in for some odd reason. Well, I finally decided to get a new (used) top case. I entered my serial number in on the website I bought it from, it came back and told me what model I had, all the specifics and even told me which top case I needed. So I bought it and I installed it today. I went to check the keyboard brightness controls and they controlled my volume instead. When I look at the "new" map of what does what, it looks like it's mapping a non-illuminated keyboard. The map actually looks just like my iMac keyboard. F10,11,12 control volume, just like on my iMac.

I used my same keyboard, I just replaced the top case, not the keyboard.

I read somewhere that the top case identified itself to the computer, so I pulled it all apart and took all the all ribbon cables from my old top case and I used them in my "newer" top case (it's a used top case I bought). I put it all back together, and same thing.

I did read some crazy long method about converting text to hex and finding some line in some code deep in the system to fix it, but certainly there has to be a way to fix this, since I still have the old top case too.

I'm running Lion, latest update on it.

Any suggestions how to get the keys back to the rightful place?

I contacted tech support where I bought it and they said they had never heard of or seen it and had no suggestions at this time.

Thanks-