Thanks to you guys, I have got my head around module development and skinning . Now I am looking at how to change the built in DDRMenu to a megamenu style.
As the menu is already installed in DNN7 I really need to understand how DDRMenu actually works in DNN 7 and then how I can make a particular skin say Gravity, Tidy, Multifunctional or similar go from its default menu style to a mega menu style.
For e.g.
Any new skin installed uses the DDRMenu.
How do I change this to a megamenu (and any sample CSS would be nice).

P.s
I notice that there is a DDRMenu module available as a drag and drop option into a pane of a page.
Can I use this to create a vertical menu in a left or right pane.
How do I then configure it and add links to it.
Can I use the database as a source for creating links (for e,g in Joomla, drupal etc I can link to articles or categories without manual editing).

I am using DNN7 and as such only have Darknghts mobile skin.
DNN Documentation is mostly based around older versions of DNN and such is not really helpful.

I Managed to download an older version DNN 6 so can have a look later at how it is configured but this seems a very heavy way to teach new users how to use a menu. If you have no technical skill you would really really struggle.
Surely someone has looked at an online configuration tool similar to how other CMS configure their menus. If a user did not have physical access to the server how the hell would they sort this???

Still would not mind a pointer as to how to drop a new DDR menu module on a page and add some links to it.

 You create a skin package and upload/install it to the DNN instance (needs host access to the site).  Then configure the site to use it (requires admin access)

Physical access/operating system level access is not essential but it can make stuff easier.