Warning: That Modpack is using the old versions of Jet 2 that i happen to have, Updates may not happen on that Modpack either, but they might happen. If i make a Universal installer, that Description changes.
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 (Legacy Jet 2) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Legacy Jet 2 from the list on the left. The launcher will handle everything else!