Bios Mods -The Best BIOS Update and Modification Source

I do not know if I'm right here, but I had to exchange my motherboard in my Acer Aspire 7750G, because my cat had made it crack.
Now I have a board of a Packard Bell EasyNote ls44hr in it.
I've installed the latest BIOS 1.21 from Acer, but the keyboard is incorrectly addressed. the Fn keys are arranged differently.
How can I tell the BIOS that it is an Acer Aspire 7750G again?

Thats the Layout now, but thats not the one i want!

I want this Layout!

Is there someone who can help me?

try to flash bios from packard bell they have the same kb.rom.... maybe there are some little differences inside bios...

Thread Moved to Motherboard Help Requests

Try this:

Click Start. ...
On the Keyboards and Language tab, click Change keyboards.
Click Add.
Expand the language that you want. ...
Expand Keyboard list, click to select your location check box, and then click OK.
In the options, click View Layout to compare the layout with the actual keyboard.