Your modpack link in your pack is not a "direct" download. It must be so in order for the launcher to recognize it.
You have mods in the "coremods" folder. Forge/MC 1.6.4 does not use a coremods folder. Everything goes in "mods".
Many (very many) of your mods seem like they are out of date. Might load into 1.6.4, but definitely newer versions exist.
You aren't including any config files in your pack. In a pack with this many mods, that is most likely fatal.