Thank you Himangi for your reply.
Actually, I am aware of the reason why the modules don’t show up, I am just looking for a way to add the modules anyway.
I have found a way to achieve it:
http://forum.joomla.org/viewtopic.php?f=32&t=1158
<blockquote>All I did was went to a menu that I don’t use, in my case ‘othermenu’, then made a new item and under components box selected the component button, then named the component ‘search’ and the then selected ‘Search’ and saved the menu item.
Then its as simple as going back to your module screen and assigning your module to the ‘Search’ menu item in the right hand assign menu for your module</blockquote>
Thanks again
L.