Problem pc suite 5.1

Hi, my problem is about the installation of pcSUite, I'm using win2000 pro, I've installed under administrator and every time I try to log as different user the application generates an error.
Under administrator it works well, I've installed several times but nothing......
Is it my mistakes or what??
I'm using PC suite with my nokia 5100.
Thanks a lot

The software needs to install on every user so change them to admin install it then change them back to user!