After following steps 1 to 5 in the process linked above (http://support.apple.com/kb/HT5559) Technic Launcher was still not working for me. So I decided to uninstall Java 7 completely by doing the process here:
http://java.com/en/download/help/mac_uninstall_java.xml
After I did that, the Technic Lancher worked perfectly
Hope that helps you all.