How do i shot web?

[Ultimecia]

Usually, to animate you have to pick the sheet and save the images individually. Then each program have your own way, usually the gif animators (like the ones Buttbutt said, but I enjoy to use Jasc Animation Shop, I guess everyone got their own favorite) requires you align the image on another graphic program (usually the one you used to separate the image), but some you can align using the own frame.
You can also use another programs, like Macromedia Flash, Windows Movie Maker... Your pick.
For any of them, for more specific help, you can ask again with more details or google it, just write something like "animation tutorial" (like that, with the "" and stuff) and hit enter