Ok.......this will have to do until the No-CD problem is fixed.
Download this
MINI-ISO that works for Sims 2! (its an iso with just the safe checks on it and all proggy stuff ripped.
Now, you HAVE to be using Daemon tools 3.47 or NEWEST Alcohol version for this to work
What you do is you set those programs to emulate safedisk, then you mount this mini-iso and you go and play! Make sure your using the ORIGINAL sims2.exe in your game directory and not the bad No-CD one's or IT WON'T WORK!!
Bingo...........game plays and build mode works fine......