This is exactly what I'm doing. I go to http://www.minecraftforge.net/forum/index.php/topic,14059.0.html and DL the universal .jar. I rename it modpack.jar, and stick it in the bin folder. Zip everything up, upload, link to the upload in the Technic site, DL in the launcher and.... get vanilla 1.6.4 Minecraft. ARGH.