Well, if the bug hasn't been found, then you will have to see how lucky you are, because only some people find bugs first. The bug could be anywhere, from editing your house to moodlets etc. If you wish to replicate a found bug, just follow the steps that someone might have posted online.
Chat with our AI personalities
you can find some on the sims 3 website or you can go to modthesims2 dot com to find downloads for the sims 2 and 3
You can buy the nude mod or you can find it in the sims 3 exchange.
It is on the Sims 3 website.
You can find a lot over at Mod the Sims. You require a Pose Player to use them. You can also find the Pose Player at Mod the Sims
The only code I can think of is the serial code for the sims 3. To be able to find it, it should be on the back of the booklet in the sims 3 game case.