Can someone/anyone help me with a problem with game downloads from shockwave.com?

I have an unlimited membership with shockwave.com. That means I have full access to all the games online and for downloading. However when I try to download the games nothing happens. When I hit the download button it saves a file called ‘installranchrush.exe’, then when I try to install the game from there a blue screen pops up saying ‘launching installer’ then it disappears and nothing else happens. But when I open the task manager the process is running in the background. The games all play great online. Everything is up to date shockwave and flash players, java, direct x all of it. I have tried downloading in Google Chrome, Firefox, and Explorer. All three are up to date. I have Vista 32 bit. Norton antivirus and Utilities. I’m thinking it’s the antivirus but have no clue how to get around the firewall or turn it off. Any help would be great and please explain as though you’re speaking to a child or I’ll have no clue what you’re saying! Thanks!!!