i had to fill this out
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 (The silliest modpack) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select The silliest modpack from the list on the left. The launcher will handle everything else!