Here is some information you might find useful regarding SmartForms and how to build forms and views:

Some of the basics on building views and forms:

http://help.k2.com/videos/4715

More in depth information that provides an intermediate approach to building solutions: http://help.k2.com/videos/4716

You may also be interested in K2 University which contains a lot of information that you may find useful:

http://help.k2.com/blackpearl/k2u

Hopefully this provides valuable information to those who are interested.