Your problem is with reference field or Vsebina at your site. This field is meant for references, so the contents are striped. You should change at least storyform.php, entry.php and submissions.php. I'm not a coder, maybe others could help.
Ok, I'll try, but I don't know what will came out, so please, don't use this code until someone confirms it. Files are from Wordbook 1.15beta2.
entry.php and admin/entry.php
change line 150 from
$thisterm['ref'] = $myts -> makeTboxData4Show( $ref );
to
$thisterm['ref'] = $myts -> displayTarea( $ref, $html, $smiley, $xcodes, 1, $breaks );
include/storyform.inc.php
change line 37 form
$sform -> addElement( new XoopsFormTextArea( _MD_WB_REFERENCE, 'ref', $ref, 5, 50 ), false );
to
$sform -> addElement( new XoopsFormDhtmlTextArea ( _MD_WB_REFERENCE, 'ref', $ref, 15, 50 ), false );
admin/submissions.php
change line 89 from
$sform -> addElement( new XoopsFormTextArea( _AM_WB_ENTRYREFERENCE, 'ref', $ref, 5, 60 ), false );
to
$sform -> addElement( new XoopsFormDhtmlTextArea( _AM_WB_ENTRYREFERENCE, 'ref', $ref, 15, 60 ), false );