Here use this video. It worked for me. I know there is another way to do this because I did it on my other computer but I can't remember what I did. The only problem with it is that when you make a shortcut to it the image is wrong. I am currently looking in to fixing this. I know it can be fixed. I just can't find a downloadable version of the icon.
http://www.minecraft-free-download.com/20066_how-to-install-the-technic-pack-for-125-quotcant-find-java-directoryquot-fixOu
Fixed Icon problem. Right click on shortcut. Then click on properties. Then select change icon. Last, select this image/icon-
http://www.convertico.com/images/1345399928.96/Technic Launcher icon.ico
Make sure you first saved this image/icon.
