Can somebody make an any size arch, i.e. an arch with left, right and middle pieces so that i can have huge archways in my huge houses. Thanks to anyone who will take this on.

I have nightlife and OFB. All games used to start up and work ok. Now game will not load past ' bacon for homeward transportation' stage. It always crashes at this point.
   I have uninstalled and reinstalled several times. Each time the game loads fine until I download a (small amount) of custom content. It then begins to crash at aforementioned point. I download different content each time so it can't be a problem with downloaded files.
  I have checked for disc updates and I have tried deleting custom registry and that cache thing (as suggested on mod the sims 2 site). Nothing has worked. Please help - I am miserable without my sims.