Hi Miss Jessie, first of all you will need a program to open the files, such as WINRAR which you can find 
 here . Then you will need to put the file into your downloads folder using winrar. See this post by me 
 click here, there are pictures to make it real easy. See these threads by Beosboxboy 
 here  as well as this one 
 here   to get you started understanding all this. Remember you must also enable custom content for it to show in your game then exit the game and enter again. I hope this helps and enjoy simming, it is addictive!!
Also please don't use all caps when posting, the forum interprets this as shouting. 
