Hi found a way to add a column with 2 boxes and keep the blog in the first column.
In modules/boonex/blogs/blogs.php
I replaced the line
$_page_cont[$_ni]['page_main_code'] = PageCompBlogs($oBlogs);
by
$jContent = '<div id="page_column_1" class="page_column page_column_first" style="width: 77%;">'.
'<div class="page_block_container">'.
PageCompBlogs($oBlogs).
'</div>'.
'</div>'.
'<div id="page_column_2" class="page_column page_column_last" style="width: 23%;">'.
'<div class="page_block_container">'.
DesignBoxContent(_t(_LanguageKey), 'HTML CODE HERE', 1) .
'</div>'.
'<div class="page_block_container">'.
DesignBoxContent(_t(_LanguageKey), 'HTML CODE HERE', 1) .
'</div>'.
'</div>';
$_page_cont[$_ni]['page_main_code'] = $jContent;
