You can find the latest Sims 3 censor patch on Modthesims: No Mosaic for Fast Lane Stuff mod which you install like any other mode and making sure you removed the old version you might already have to avoid any conflict.

You can also check out another Sims 3 Censor Patch, The Decensor (Version 3 – Updated 05-MAR-2010).  Then end result is the same but in fact it does not remove the blur effect, it delays the censor by 250 real-time milliseconds. The positive point of this one is that it’s dynamical so the creator does not have to update it for each patch, unless EA change how/when the effect is applied in the core files of the game.

A Sims 3 Censor Patch mod is not necessary if you are using Awesomemod, as that mod contains its own anti-censor measures.

WARNINGS: As always, ensure that you backup your save files prior to installation of any Sims 3 Censor Patch mod.