You don't have to 'import' them anywhere. Just open your SMileycons--put your cursor on the little 'down arrow' next to the 'sun' (that's Universal)--on the drop down menu, click on Incredimail. That will 'set' the program for use with Incredimail. You can change it back to Universal later.
Also...on "Options"--click LOCAL EMAIL MODE. But Remember: if you want to go back to using Smileycons on the hill later, you MUST uncheck that!
That works for me. Have fun!