In Joomla, for just about any template that people use, we have many specified positions ( left, right, footer) .. Can you really include new position within the template which suits our choice ...

Yes, it's. You have to give a div aspect in the spot where you need and place joomla tag


<jdoc:include type="modules" title="yuor_position_title" style="xhtml" />

inside it. Than you have to add it for your templateDetails.xml Edit this file and increase the <positions> section yet another thread such as this:


<position>your_position_title</position>

and save the file. From now you will notice it in modules setup. Good tutorial about Joomla 1.5 templates read here:
http://www.compassdesigns.net/joomla-tutorials/joomla-15-template-tutorial