another boot camp problem

Hello,

I've just upgraded my Leopard to version 10.5.2.
I've Mac Book Pro 2.2

I'm trying now to start Boot Camp assistant and to install Windows Xp on my machine as I need this OS for work.

During Boot Camp Assistant startup process I see this message:
"Boot Camp Assistant cannot be used - You must update system software before using this setup assistant."

I've checked using "System Update" that I've already have newest version of all OS components.

What's wrong then ?
Could someone tell me how I can install Windows XP SP2 on my MacBook Pro? (I think BootCamp is compulsory to perform this operation).

Help!
kenk

try downloading the 10.5.2 combo update from apple's website and running that
*someone please confirm this - I don't know if there is a chance of messing up your computer by doing this*

that has seamed to solve other people's problems