Hey, I need someone to help. I have a bad computer, so i lag allot. so i got optifine for 1.4.7, but in the 1.5 update i dont have my mods, so I deleted the .jar of minecraft 1.5 (.bin folder) and replaced it with 1.4.7. Facepalm on my part. All I need, is for someone to go to there start, type in run, type in %appdata% and go to .minecraft, go to bin, and get a executable jar file called "minecraft" and copy it and send it to me via over skype. PLEASE I know this is allot to ask for but I need that update. sniff.
You know how when you first click Minecraft right? Well under your username and password, there should be a setting for options. Then, click Force Update! Hope this helps!