*** HOW TO INSTALL *** Extract the download archive directly into your MCP-directiory. It should create a folder "forge" within that directory, containing all extracted files. You should use freshly decompiled jars, solely including ModLoader & ModLoaderMP respectively. Anything else can eventually cause conflicts. Now just start the install-bat, MCForge will install itself into the proper locations and copy all ned files, as well as modifying the ned baseclasses.