First of all sorry for my bad english but try to do like this, it works fine: click on The Sims3/game/bin then search the file TS3.exe and create a shortcut to your desktop. Right click on the shortcut and open properties. You'll see "target". Just continue to write on that same line (but leave a space!) -disablestoryprogression
When you want to play you have to use that shortcut. Your Sims will do nothing that you can't control.
Have fun!