I am assuming you do not have a C:\Program Files\Ea Games\
all of your sims games folders any longer so,
Here is all you have to do.
If you have the above Ea Games folder on your C: drive don't do the following
Open My Computer then double click the local C: disk and double click the backup folder that has the folder with all of the Sims games inside it. If should be an EA Games folder with the Sims games in it not the custom content. You should see folders named The Sims 2
names of the EP's you had in it.
Find the EA games folder and right click on it.
click on copy.
Now click the back arrow at the top of the screen until you see all of the yellow folders. The address bar at the top of the window should just have C:\
Double click the yellow Program Files folder. If you see an Ea games folder in there stop. if you don't see it then continue.
Click Edit at the top of the window and then select paste. That will put the games back where thy belong. That does not mean they will work. The recovery may have over written the windows registry which means a reload of the Sims games.
That does not mean you have lost all of your custom content though. Take a look in the back up folders or your My Documents folder for another folder named Ea Games with the custom content folder in it. It will look something like this inside.

If you find it in the My Documents folder then it probably still has the custom content in it. Double click it and see. If you find it in one of the backup folders then right click on it and select copy and then double click My Documents and click on edit at the Top of the window and select paste.
That should do it for the Sims. Don't hesitate to ask if you have questions. Good Luck we are all counting on you.