i have the webmin already installed .....
and i want to find a way to install it with three specific modules how can i do that ? ...
if there is the way if i have the webmin already installed can i load the specific modules i want to the apache ?
I'm not sure I understand what you're trying to do?
When you say "can i load the specific modules i want to the apache ?" are you talking about Apache modules here, or Webmin modules? They're completely separate things...Webmin has no relation to Apache, except that it can configure it.
To install new Webmin modules, use the Webmin:Webmin Configuration:Webmin Modules module. It will allow you to install Webmin modules from .wbm or system packages. It'll also allow you to re-install or update any of the standard modules.
menuitem webmin>Webmin Configuration>Webmin Modules