Welcome to my mod and map download tutorial!!This is for Windows 7 only!
Map Download Tutorial The first thing you are going to do is download the map you want. Open up .minecraft. Then open up saves. After this, you are going to open up the map .zip or .jar file, there will be a folder in there, or not. If there is a folder, just drag the folder from the .zip or .jar file into the saves folder. If there isn't a folder, make a new folder in saves. Then drag the files into the new folder that you made. Open up minecraft, go into singleplayer, and see if the map/save is there!
Mod Download Tutorial The first thing you are going to do is download Magic Launcher. Then, run Magic Launcher. Click 'Setup' Magic Launcher. Download the mod you want, and all prerequisites for the mod, such as forge or modloader. Click 'Add' in the 'Setup' Popup in Magic Launcher. Chose the mod you want to download and x2 click it. Do the same thing you did to add the mod with the mod prerequisites. Open up minecraft, go into singleplayer, and see if the mod is working!