Well, first you need to make sure you're legally allowed to sell the anime you want to sell.
If you want an online store you just need a website.
If you want a store people can walk into you need a building for it. Buy shelves, put the anime on them, and advertise.
Weekend Anime is in Maine
Anime is an art, so I would start with art classes and learning the style of anime.
eBay is a good place to start or your local book store xox Maximum Ride Girl
1999, when shrek was released
In a Comic store or A anime store.
Japan4you
There currently is an Anime of Kingdom Hearts. Check your local book store.
At the store Hot Topic and probably the Disney store
The itunes store.
If you are talking about the shoujo ARISA then there is no anime coming out for it --- No one in the company has decided to start an Anime for Arisa.
You can find almost every anime song at www.Gendou.com Also, iTunes has started selling anime music as well with anime as a new genre to the store. There's not much yet, but it will grow.
Publish it.