The Thomas R. Bergs of Mishawaka, IN

This is the family research beginnings for me, my Dad started collecting info and I bought this program and am just now beginning to use it (I have version 5.0).Wish me luck, it looks intimidating to me.
My Dad's great Grandfather came from Gothenborg, Sweden and Dad grew up in Duluth, Minnesota.I have names to get started with and there are a couple for Sweden.My Mothers side will be more difficult as her Father was divorced from her Mother very early so I will have to find the Greenlee family (Nebraska, Iowa, Tennessee and Carolinas).Our Greenlee line dead ends for me on the East coast, can't find the one who immigrated to America or from where.
It will be nice to have this all organized on paper someday but haven't been able to give a lot of time to this.