Under the webmin configuration there is an option to update modules or something like that. If you run that it searches for installed programs and moves the modules to where they should be. There is also a screen that allows you to move them manually.
Tom
http://doxfer.webmin.com/Webmin/WebminConfiguration$this->bbcode_second_pass_code('', 'Editing categories and moving modules
Every Webmin module has a category that controls where it appears on the module's main menu. You can create your own categories and move modules from their default locations into your own or existing categories, which can be useful if you don't like the default arrangement, or want to put everything into one huge category.
To create new categories or re-name existing ones, follow these steps :
Click on Edit Categories on the module's main page to display the category editing page.
To add a category, scroll down to the bottom of form. In the first empty field under ID enter a unique internal name for your new category, such as stuff. Then in the field next to it under Displayed description enter the name that will appear in Webmin, such as Thirdparty. Existing categories that you have added can be edited by changing the fields in this section as well. However, you should not change the entries in the ID column, as they are used internally to associate modules with categories. The ID is never visible to users anyway - only the displayed description is.
To change the name of one of the default categories displayed at the top of the form, select the second radio button next to it and entering a new description into the text box to the right. If Default is chosen, the standard name determined by the current language will be used.
Hit the Save Categories button at the bottom of the form to activate the new categories. You can now move modules into any that you have created.
To change the categories that modules appear in, do the following :
Click on the Reassign Modules icon on the main page.
The page that appears lists every installed Webmin module and the category it is currently in. For each module that you want to move, select a new category from the menu next to its name.
Click on the Change Categories button at the bottom of the page to move the modules.')