Help with SIMS
 

I made a backup of SIMS and SIMS: LIVING LARGE. I installed SIMS from the backup and then Living Large for the backup disc and when I tried to run the game it told me I had the wrong disc in. I went to get help and can not get any further. I used unSafeDisc v 1.5.5 and followed the directions, although I can not get the new SIMS.ICD to copy over the original in the game directory. Can someone please help.