hi guys, i downloaded helms deep and put in my saves folder ( i have a mac) i clicked save and when i logged in i was in normal minecraft all my servers were gone single player worlds and texture pack what did i do wrong!(btw the map was helms)
In order to successfully load the map you have to put the .zip in your saves folder and open the file to make it a folder, not a .zip.
Seeing you use mac, this could probably be done using Zipeg or Archive Utility.