just got TerraFirmaCraft for minecraft 1.5.1 but when i tried first to install forge (version 7.7.1.664, its the only one that is compatible oddly) it full downloads except for the scala-library, so i then download it from the link in the error and put it in my lib, and it still wont work. the same error says i need checksum 458d046151ad179c85429ed7420ffb1eaf6ddf85 but i dont know what that means. Please help.