Step 1. Delete your Minecraft.exe you currently use to launch your minecraft.

Step 2. Go here and download the latest 1.6 version of minecraft.

Step 3. Place the download on your desktop.

Step 4. Create a new folder.

Step 5. Open your recycle bin and drag your deleted Minecraft.exe into the new folder.

You now have Minecraft 1.6 and Minecraft 1.5.2

Hope this helps guys :sick: