Since alot of people having issue on updating MashUp Add-On On XBMC, mash2k3 brought up steps and i created the video on how to fix the issue…
Things to Know:
1. Jailbreak your AppleTV 2
Seas0npass http://youtu.be/bXvOJAH9KAo
2. Tell Difference Which AppleTV your Holding ( AppleTV 2 or The New AppleTV 3)
http://youtu.be/Ns1jMAhVa8Y
( If still confused, search google to know which one you have )