Hello,
I installed SJ Plus template on a Joomla 3.1.1 and now get a 404 because I have to install Plugin YT Framework.
When I try to install Plugin YT Framework (YT Plugin.zip) I get: Warning. JInstaller: :Install: Cannot find Joomla XML setup file
Since I am somewhat of a noob, I have no idea what to do now...

ok, I found this one: www.smartaddons.com/download/free-joomla-templates/cat_view/29-joomla-/44-free-templates/178-sj-joomla3,
but now sj-plus gives this error:
Warning: include_once(/home/mwzzp123/domains/miniwebsite-zzp.nl/public_htmlJ_SEPARATORtemplatesJ_SEPARATORsj_plusJ_SEPARATORincludesJ_SEPARATORframe_inc.php) [function.include-once]: failed to open stream: No such file or directory in /home/mwzzp123/domains/miniwebsite-zzp.nl/public_html/templates/sj_plus/index.php on line 21

Warning: include_once() [function.include]: Failed opening '/home/mwzzp123/domains/miniwebsite-zzp.nl/public_htmlJ_SEPARATORtemplatesJ_SEPARATORsj_plusJ_SEPARATORincludesJ_SEPARATORframe_inc.php' for inclusion (include_path='.:/usr/local/php6/lib/php') in /home/mwzzp123/domains/miniwebsite-zzp.nl/public_html/templates/sj_plus/index.php on line 21

Fatal error: Call to a member function getParam() on a non-object in /home/mwzzp123/domains/miniwebsite-zzp.nl/public_html/templates/sj_plus/index.php on line 23

Dear Peter,

Please go to www.smartaddons.com/joomla/download/free-joomla-templates/cat_view/29-joomla-/44-free-templates/205-sj-plus-template and download our newest YT Plugin Framework (SJ Plus - Extensions for Joomla 2.5 and 3.x ), then unzip that file, and install the plugin zip file.

Thanks

Yep, that did the trick! Thanks very much for the help. Have a nice day!