LinuxSkype

I recently bought a Skype phone to talk with friends abroad.  The CD it came with states I need Windows Vista or XP so I went to the Skype page to see if there was a Linux version and there is.  When I go to download it, it asks me to choose another option/version.  Can anyone advise me on which option/version of Skype I should be choosing?  Being "technically/computer challenged" I have no idea what they are asking me.  Thanks for any input! 

https://developer.skype.com/LinuxSkype