Hi look at myproblem thatI've found on Maxis.com
Question
Why can't I use the Build Mode tools?
Answer
If you find out that you are unable to do anything in build mode, like build a foundation, walls, windows, Doors, or anything then your Sims2.exe files has been corrupted. This can happen for a number of reasons, one of the most prominent is if you are using a 3rd party "Patch", "Hack", or "Mod" that changes or replaces this file or add additional files to your game.
Is there a way that we can make the build mode tools work ?!
Thanks