Windows Live Messenger error

Hey guys/gals, my girlfriend is currently trying to install windows live messenger onto her new laptop, which has the windows media player xp version, however during the installation process it comes up saying it's not a valid win32 application. Is there anyone out there who can advise as to how to fix this issue?? Your help would be much appreciated

this was fixed by downloading the application from a different location. Just to let anyone know who has read this thread.