This is a unofiicial port of atm9tts, i created a unofficial port of atm 10 too. Its called All The Mods 10 - Updated go check!
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Type in the modpack name (ATM 9 To The Sky - Atm9sky) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select ATM 9 To The Sky - Atm9sky from the list on the left. The launcher will handle everything else!