I just got a new computer and when I installed Minecraft it is the new 1.6.4 version. Now I have to also install everything I had before: Forge, Optifine, and Rei's Minimap. I was able to load these with great difficult (and lots of help) on my old computer with 1.6.2 Are these mods going to work with 1.6.4? Are there any problems with 1.6.4 and Empire? Is there anything else I need to know before attempting to add these things?