Place the folder (not the .zip file) in your saves folder. For minecraft it should be at :
C:\Users\<Your User>\AppData\Roaming\.minecraft/saves

for using Curse Voice:
 1.go to settings
 2.go to the minecraft tab
 3.Look at the "Minecraft Install Location"
 4.Go there
 5.Open "Instances"
 6.Open the folder with the same name as the modpack you are using that has the required mods.
 7.Open the saves folder
 8.Place the map folder in there
 9.Play
 10.Rinse, Lather, Repeat :D.

