To install it all you need to do is put the folder named Merriam-Webster in the notes folder on your ipod. It is excellent, I have it on my ipod (5G) , but i have one gripe. After every time you eject you ipod from any computer, syncing or not, the ipod goes through a "notes loading" cycle that can take 10 minutes or so, and you cannot turn off the ipod or view the notes folder while it is doing this. I hope apple has an update in the future that gives you the ability to view the notes without the need for any loading.