Homepage customization

Hi. Back after long time here…
I need to change the look of homepage to a customized one. For instance, if I want to use Industrious - Free HTML and CSS Template template for my homepage, how can I do that? This one is also a free template to download. Is there anything like uploading this to xwiki somewhere and using it directly?

You should google for “xwiki skin”. There are several pages about skins on xwiki.org about this.