Andre, I have tried all of the templates with your slide show 4 skin and they all display fine without changing any settings.
The bad news is that none of the pages are correctly formed, they are all missing the end head tag and, as you will have noticed the top navigation menu. That is because your page-header.inc file does not have/or link to either element.
All of the templates require the code in, for example, this format
<html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=${textEncoding}">
<title>${title}</title>
<link href="${stylePath}" rel=stylesheet type="text/css">
<ja:if test="<%= useTemplateHeader != void && usePageStyle != void %>">
<ja:if test="<%= !usePageStyle %>">
<link href="${templateStyle}" rel=stylesheet type="text/css">
</ja:if>
</ja:if>
</head>
<body>
<ja:include page="navigation-bar.inc" /> <%-- Keep this --%>
So you need the html, head and body tags and a link to the navigation-bar.inc file defined outside the templates.
Since you are opening other pages in a new tab you might not want to put in the navigation menu. Or better, open the pages in the same window/tab and include the navigation.
Edited by: RobM on 12-Nov-2014 21:41