Download the Technic Launcher. Click on the Modpacks tab once you're on the Technic Launcher. Search for Sparkz in the search bar. If Sparkz doesn't show up, Technic might be having issues, so try again later.
If it does show up, it should look something like this.
To add it to your Modpacks collection, simply click on the Install button in the bottom-right corner of the launcher. Read this page for more information on how to allocate more RAM for Sparkz to run.
To add it to your Modpacks collection, simply click on the Install button in the bottom-right corner of the launcher. Read this page for more information on how to allocate more RAM for Sparkz to run.