In this case, a very useful would be extension called Modules Anywhere (nonumber.nl/extensions/modulesanywhere).

Now you can include a single module or complete module positions anywhere in your site, including within 3rd party components and even within other modules. Because this plugin works in modules, using custom code module (Custom HTML) you can put to them one or more modules with easy wizard tool hidden under button.

You can also overrule module parameters via the {module} tag. This way you can have one module displayed in different ways, with different settings just by overruling the settings via the tag.

Modules Anywhere is compatible with Joomla 1.5 and Joomla 1.7.

Source: Gavick Magazine