Board Thread:Support Requests - Getting Technical/@comment-25355328-20150329180547/@comment-4018164-20150329202826

To answer your first question, if you're an admin in this wiki, you can import scripts to the main page by putting in your MediaWiki:Common.js something like this: Though when using scripts from other websites, you need to make sure that their copyright status does not forbid such usage, and also to make sure that they are not malicious or violate the customization policy.

As for your second question, it seems like Template:HeadingA is used for the boxes' titles, and inline style within the main page's source is used for the borders (e.g. Ctrl+F to for #BCBCBC to find occurrences of the border color value). In case you'd like to include images there, this can be done by adding, for instance, a wiki image to the title or box content are, but additional CSS can be used to add something more advanced than that.