Well I think he used CAW. I want to be able to delete all the lots in SV, replace them with my own, and upload it to the exchange mediafire etc etc as long as I can upload it without using CAW. Is that possible?
As far as I know he just used edit town to do it.
I've made similar saves of towns. When you start a new game and get to the overview of the town where you have the option of making a sim and moving in a household. Open the menu and go into edit town from there and modify your town and make a save. Going into edit town from here you never enter the game so all the sims in town haven't aged or done anything just like start a new game.
Then you can upload that save file for others to download and use.