How to include a pic in the Login & Unathorized pages?

Posted by 1j1 on Jun 14, 2014; 6:52pm
URL: https://support.nabble.com/How-to-include-a-pic-in-the-Login-Unathorized-pages-tp7590503.html

http://lake-hoohaw-boards.2328210.n4.nabble.com/template/NamlServlet.jtp?macro=unauthorized&node=86&cid=1402761193277-882 - is it possible to include the image above the "STOP!" title? I was trying in many ways to input a pic link in that unauthorized macro but all the time it was giving me an error & the whole forum was messed up.
Same, I would like to have a pic in the Login page (http://lake-hoohaw-boards.2328210.n4.nabble.com/template/NamlServlet.jtp?macro=login_page&nextUrl=http%3A%2F%2Flake-hoohaw-boards.2328210.n4.nabble.com%2Ftemplate%2FNamlServlet.jtp%3Fmacro%3Dunauthorized%26node%3D86%26cid%3D1402761193277-882) above the "You can't come in etc" title.