I've been trying to install this mod for about an hour now. I've installed Minecraft Forge and when I put the JAR into the mods folder, I get a black screen. No crash, just a black screen. I tried different ways to install it, and nothing works. The only other mods I have installed are OptiFine and TooManyItems. If you have any suggestions, I would love to hear 'em.
I think I've found the problem. There are two links to download, when you choose the mirror, you'll get a file with 341KB, this one is causing the black screen (for me)... with the link under "latest recommended download" you'll get a file with 339KB only, and this one is working (for me).
Just try it out.