I made a mistake while copying 1.2.5, no big deal. I knew that I just had to wait for CraftBukkit 1.3. When Jigs finished getting the server ready, I went on to play. But when I got on, there was so much lag it wans't any fun. Later, I got the annoucement about the server not staying on 1.3, and going back to 1.2.5. That is fine if I could just figure out how to download Minecraft Version Changer. Could someone please give me stepes about how to do that?