Hi Andreas Matthiessen,
- you can remove the sj new logo by opening the template.css file in "your_site/templates/sj_news17(sj_news25)/css", finding:
#yt_navcontent .name-site a {
    background: url("../images/logo_sj_news.png") repeat-x scroll left center transparent;
    display: inline-block;
    height: 53px;
    width: 137px;
}
change to
#yt_navcontent .name-site a {
    background: url("../images/logo_sj_news.png") repeat-x scroll left center transparent;    
    height: 53px;
    width: 137px;
    display: none
}
- you can change the language for "Switch Mode views" by opening the yt_template.class.php file in "your_site/templates/sj_news17(sj_news25)/includes", finding:
 <span class="title-swm">Switch mode views:</span>
 change to:
 <span class="title-swm">your language:</span>
Thanks