I dont see the icloud icon on my desktop mini I have all the other devices in icloud but this computer is not included how can I includ it?

Mac mini, Mac OS X (10.6.8) < your profile

You need to be running v10.7.2 Lion.

Make sure your mini meets Lion General Requirements

You can purchase and download Lion from the App Store that is already on your Mac since you are running v10.6.8

You can locate the App Store app either from your Apple menu, the Dock, or the Applications folder.

Or you can purchase the Lion thumb drive here > http://store.apple.com/us/product/MD256Z/A