newbie has ACPI problem

[Mikael]

Hello


As I am new to FreeBSD and could not find anything useful by googling around I 
decided to ask from here.


In FreeBSD7-CURRENT acpi works for my laptop (Fujitsu Siemes Amilo A1650)
but FreeBSD6.1-STABLE (or 6.2 RC1) did give me lot of error messages with 
different error codes. Mostly about fails in TZS stuff..

Everytime my cpu get more work and fans start spinning faster i got error 
messages printed on screen.

Other problem is that my clock speeds is running too fast. For example in boot 
screen the time counter speeds almost in double speed.

And since this is laptop with dynamically changing cpu frequencies and fan 
speeds I really would like to have acpi enabled :)

In Linux(2.6.17) and Windows these things work....but I REALLY would like 
replace them with FreeBSD.

SO...THE QUESTION (finally)

Is it possible to use freebsd6,1 stable with custom kernel acpi module from 
freebsd7-current?
or any other way for newbie to get his ACPI working,

-mikael