1. Install latest Forge for Minecraft 1.6.4

2. Place files into needed place. The folders with the files already explain where to put the files.

3. Launch Minecraft but don't press 'Play'!

4. Edit the profile called 'Forge', when 'Profile Editor' window appears, look for 'JVM Arguments' which can be found under 'Java Settings', make sure it is TICCKED.

5. When it is ticked, ADD the following into the text box: -Dfml.ignoreInvalidMinecraftCertificates=true -Dfml.ignorePatchDiscrepancies=true

6. Save Profile and you are ready to play!