Installing PTB3 on WinXP

Hello All.

I am having problems installing PTB3 on WinXP.

I download the Tortoise SVN client, and it works fine.

I did manadge to get PsychToolBox 3.0.7 copied from the repository to
my computer, but nothing works.

But DownloadPsychToolbox asks me to visit
http://metissian.com/projects/macosx/subversion/ because
svn is not in /usr/local/bin/svn

Somehow, it's treating my PC as an OSX machine.

Also, a simple command like this:

>> Screen('OpenWindow?')

returns

??? Error using ==> Screen
Too many input arguments.

The repo location for version 3.0.7 is:

svn://svn.berlios.de/osxptb/Psychtoolbox-3.0.7

Is there a location where I can get a real Windows version?