Go to http://www.xboxmb.com/forum/77-tech-section/27675-zombe-mod-installer-minecraft-flying-mod-installer-made-kink.html
Download the program , open it and you should be able to figure out the rest.
http://www.minecraftforum.net/viewtopic.php?f=1032&t=96815&sid=2e47e2cc5518e4b7a0e3fd0aedb2b129
Download the new Zombe modpack
Instructions for download provided by zombe @ http://dl.dropbox.com/u/19090066/minecraft/readme.html#installation