Setting up IMAP is basically the same as setting up POP.  The only real difference when setting it up is the incoming server ports.  Most clients will automatically set the port based on whether you choose IMAP or POP in the beginning of the set up.

Here are some additional articles that may be useful:

How to set up POP and IMAP

The Differences between POP and IMAP

What is IMAP?

Mail Setup Videos