I did what you suggested but it loads vanilla minecraft 1.6.4.
New link incase it changed : http://www.technicpack.net/api/modpack/blue-wolf
Im also planning to make a server of this pack so if any instructions to do that as well is greatly appreciated.
I made a private custom modpack but i cant seem to get it working with the launcher it simply loads normal minecraft 1.6.4. If anyone would like to help get it working I would really apreciate it heres the modpack link: http://www.technicpack.net/api/modpack/blue-wolf