Hi Gale, SU Free is capable of all the modeling features of SU Pro. The only difference is in 3D and 2D vector format export possibilities and (for a funny reason only PC version) the Location tab in the model info. See a detailed "distinction" between the two programs here. Note however that if you succeed to use SU in your current project, you will never uninstall it from your HD Should you have any specific question or problem, please, be encouraged to as them here! Also, we have "collected" a few links where you can pick up ideas easily - at the top of the "Newbie" Forum, see the "Getting started" topic.