Sounds easy, make a hole, and put a tree in the ground, then rer-bury it! Almost that easy, but a few initial steps found below, will greatly help your project, thus insuring that the tree will provide you with fruit for many years to come.
http://www.cahe.nmsu.edu/pubs/_h/h-316.html

http://www.eartheasy.com/grow_fruit_tree.htm#f

http://www.hcs.ohio-state.edu/mg/manual/fruit6.htm

Thanks DF, this will come in handy, The Mrs. and I are talking about planting a few trees.