I have looked everywhere and cannot find the minecraft.jar file that everyone keeps referring to. The only thing my child wants for Christmas is to get a mod and I can't seem to figure it out. Please help!! I'm running Windows 8 with Minecraft 1.8.
Hi there! I totally understand how frustrating it can be to understand the ins and outs of mods.
Check that you can see hidden files. It's a setting in the control panel, in Windows 8 you find it under Control Panel > Appearance and Personalization > Folder Options ... then click Show hidden files and folders. This site has also got an article that explains it with screenshots.
In the latest versions the jar file is in the versions folder... so for example if you're running 1.8 then you'd find the jar in /versions/1.8
If that doesn't help, let me know and I'll see if I can figure it out for you!