I solved my problem! ahahahahah =D
Keyboard and touchpad are now working ok
I just replaced the ACPI... .kext and installed voodooPS2controller.kext
Well... safari continues with the same problem. In this forum I have this problem, scrolling ain't ok. =/
EDIT1(28.11,2009): Safari sometimes is ok, some don't. Now have problems again, some minutes ago, it was ok.
But, safari is not the unique with this problem. When i'd gone to "System Preferences", and changed my mouse settings, in the last column (Keyboard, Mouse, Keyboard Shortcuts) we have a list when we can scroll. And there the scrolling problem revealed again.
Thinking a bit, using my limitated knowledges I probably say that this is a graphic problem. No drivers? But this just happened after the update to 10.5.8...it's strange.
EDIT2(29.11.2009): Graphic problem. Big one... Every windows now are not displayed ok. If I move one window(safari for example) from one side to the other in my screen, the body of the window begin to mix one with other. I can't explain this better , maybe with a print screen:
And this(this should be the System Preferences window, as you can see it's not displayed correctly):
Graphics, resolution. That's what I want to solve.
Thanks again!