How to get and download wonplay.exe into my c...

Question

I have a Vista Operating System. I am trying to play backgammon with my sister in richmond. hoylegames.sierra.com. I can log in but when I get to a room to play, it says error 5. It says cannot find path (blah blah) C:programfilesWONwonplay.exe. I have went into my internet options and changed my security settings for ActiveX and enable 4 or 5 things and turned off my pop off blocker. My brother helped me and it brought me to something that said program files, and it had a tab Browse.
I went to google and I found someone who said to add to public users file is that familiar to you. I didnot perfor that task but i did copy to my documents to have on hand if I needed to.
Please help me Tech Angel!!!!