i found this software on another site. basically from what i understand what it does is, it simulates the bread boards and stuff like that so you can test the software before you load it or something. don't quote me on any of this as im very new to all this and just learning . just thought id share what i found with you guys.
http://www.virtualbreadboard.net/Hom...8/Default.aspx
im pretty sure its free