hi I just got the game, installed, downloaded and installed the latest update but I can't launch it

this pops up when I try...
"Unexpected Scripting Error, Unable to load scripting libraries.
Please install using setup.exe and play game from the Start Menu.
(probable reason: Windows Script 5.6 is improperly installed. Search for
download "windows script" for a reinstaller)."
So I installed from setup.exe, tried to run the game from the Start Menu and I got
the same messege pop up. So I went to microsoft.com and downloaded and reinstalled
Windows Script 5.6, launched from Start Menu, same messege came up! Arrrghh!!!
I'm not very techy with computers but I'll do my best to decribe what I'm running on,
Packard Bell AMD Athlon XP 3000+
Geforce 6200 256MB DDR
XP Service Pack 1
2.16Ghz Processer
512MB RAM
err..sorry like I said not very techy! I'm hoping this is a common problem and
easily fixed! I wonder if the fact I'm running Service Pack 1 is the problem?
I really want to play this game as I've been waiting for weeks for it to arrive
(I live in the middle of nowhere in france) and I'm feeling pretty disappointed
right now

So I'll be highly thankful of any help anyone can give!
Dan