TwistedMexi's site should be easy enough to google. It's a pretty simple mod that just brings back various cheats that were originally in the game, and were then removed again a long time ago. Destroy Object will get rid of a problem object. Doing it to a sim will make them disappear, but they aren't removed from the game, they will just suddenly be home again.
I've had the mod installed for ages, and I've never had to update it. Chances are, if you're still using an old patch, TM's All Cheats will still work fine.