Hello, welcome to the site.
Have you installed DNN at all? Which version are you going to install?
DNN3.x and 4.x differ in their requirements. I don't have any tutorials for installing DNN to a localhost installation so I would recommend you check out these resources:
The main DNN documentation:
http://www.dotnetnuke.com/tabid/125...fault.aspxwhich details information for installation and what you need.
http://www.traincert.net/">Traincert offers a free local installation video covering installation for DNN3.x
If you are using DNN3.x you will need to install MS-SQL server - If you are installing DNN4 you can download the free
http://msdn.microsoft.com/vstudio/e...fault.aspx">SQL server Express that comes with Visual Web Developer Express.
Hope this gives you some starting points, thanks,