Resolvendo o problema na instalação do Forge 1.5.2

                                                           =========Downloads=========

bcprov-jdk15on-148.jar
https://www.dropbox.com/s/6d3l4z2tyztnprw/bcprov-jdk15on-148.jar

scala-library.jar
https://www.dropbox.com/s/ngg08p98as3mwmv/scala-library.jar

Baixe a pasta .minecraft com o Forge instalado
http://adf.ly/50132/http://www.mediafire.com/?pe801i5g179l55b