The Packages folder will already have two files in it ('nobuildsparkles.package' and 'nointro.package') so you'll be able to check if your mods will work. The FrameworkSetup file will contain the necessary framework for your mods - a folder named Overrides, a folder named Packages, and a file named 'Resource.cfg'.Again, the location of The Sims 3 documents folder is Documents > Electronic Arts > The Sims 3.
Select The Sims 3 documents folder when asked where to extract the contents of the zip file to. You need a program such as Winzip, WinRAR, or the free alternative 7-zip to Extract the contents of a zip file. Extract the contents of the Zip file to The Sims 3 documents folder.