I don't know where I went wrong. It is supposed to have this screen showing
Can someone help?
Start the Launcher and go to "installations"
Create a new Profile and search for the forge-version in versions
Save and start the game
The only thing is, it won't show the forge-version in versions! I checked
Only just now it showed it I am SOOOO ANNOYED IT WASN'T SHOWING IT BEFORE!!!
Did you download the installer from here?: http://files.minecraftforge.net/
Double-click on it and press ok - then check the launcher again
In versions - also check the entire list (scroll to bottom)
I had to download Forge to the Minecraft %appdata% folder.