Help getting a plugin to work

I have used Pro Tools LE 8 for years and recently upgraded to Pro Tools 10. I was using the Xpand! 2 plugin with PT LE 8 and really like it but it is not installed on Pro Tools 10. I have the PT LE 8 Installation disc which includes a folder for Xpand! 2 with "Xpand2.big" file. Where exactly do I place this folder or file within my PT 10 installation so that I can use the plugin with PT 10? I am running a Windows 7 PC. Any help is appreciated!