HelpFollow

Everytime I click the Icon to get into the PlayOnline login screen a window installer come up and when I hit cancel it comes back up(after like 10 cancels it goes away).So when I let it download it tells me to put in disk 1 and I put it in and a error happens.So, when I finally manage to get the to part with the video right before I wach it the windows installer pops up and keep me from playing the game! How do I fix this?