Install OS X 10.6.6 with Mac App Store Update

• 1). Open "Software Update." Click the Apple symbol in your menu bar and choose "Software Update...."
  
  
• 2). Click "Install" and continue with the installation until all updates have been installed, including the 10.6.6 OS X update, which includes the Mac App Store.
  
  
• 3). Restart your computer, the restart will take a while, but is necessary to put the new 10.6.6 update in place. Once the update is complete, the Mac App Store will show up in your Dock.
  
  

Installing Apps from the Mac App Store

• 1). Open the Mac App Store from your Dock.
  
  
• 2). Click "Sign in..." from the top menu bar to sign in to your Apple account (connected to your payment information).
  
  
• 3). Find an app that you are interested in.
  
  
• 4). Click the "$x.xx BUY" or "FREE" button below the application's icon to start the purchase and installation.
  
  
• 5). Click "Confirm Purchase" if prompted. Your new app will be installed to your Applications folder and automatically dropped into your Dock.