If you've created a new profile for Forge, all you need to do is change to your username in the dropdown list.
Chat with our AI personalities
It means that you need to login on minecraft.net and download new launcher.
Minecraft 1.6 is currently out. It does require that you download the new launcher to run.
Updating minecraft on the computer is very easy. When you open the launcher and log in, it should download the new version automatically (if you confirm it). Obviously, this requires an internet connection. The only difference is updating to 1.6.1. This version requires you to visit the minecraft website, go to the downloads section, and download the new launcher. Then, when you want to play minecraft, you open the new launcher, login, download the update automatically, and play.
The beta version of Minecraft was released on December 20, 2010.* * Minecraft-beta came after Minecraft-alpha, but before Minecraft 1.0. You can play Minecraft-beta with the new launcher.
You need to download the new launcher. When logging into minecraft 1.5 it should give you a link on the main menu. If it doesn't, go to https://s3.amazonaws.com/Minecraft.Download/launcher/Minecraft.exe (link on minecraft.net) The new launcher will automatically download and when you run it, it will ask your account information (name and password) on the gray bar on the right. Enter it and click play and you have minecraft 1.6! Enjoy