How to learn to use Vim?

vim
:help
rtfm :)

My attitude changed to vim screencasts Derek Wyatt'a. vimeo.com/6999927 Here's the intro, for example.

first, install *nix, at least in a virtual machine. I assure you, nice you will NEVER have the desire to carry vim :)

1. Start vimtotutor and play in it.
2. There are screencasts about VIM in General: vimcasts.org/. Interesting enough, there is something to see
3. Watch a comprehensive screencast on the topic of vim settings for your favorite language / framework. For example, my post (with screencasts from Akita) about VIM + Ruby On Rails. Many of the pieces there will fit to any language, not only ruby.

First of all, remember
:w!
\r
and then podcasts and everything else.

how-so?! and not a single comment about emacs?!

Here for a start:
\rru.wikibooks.org/wiki/Vim
Just put everything that was described and you will have a General idea of Vim, you will know the basis.