After some tweeking the layout of some contents like tag cloud, archivelist where included in the blog in consistent with the site theme.
One important point is for each module one can create a tpl file like for blog I created node-blog.tpl.php and do whatever comes in your mind.
Thanx to mustardseedmedia.com
In the end the look was disfigured as shown below which is my qchronicle look.

In order to provide the spiral theme for the image created header-inner id inside header-wrapper in the page.tpl.php <div id="header-wrapper"> <div id="header" class="clearfix"> <div id="header-inner"> In the style.css #header-inner { margin: 0 auto; padding: 0; width: 960px; height: 120px; background-image: url(images/bg_page1.gif); background-position: left top; background-repeat: repeat-y; }