To install a new skin object in DNN, start by following the instructions for installing a module in DNN.
After the skin object is installed, you may modify your skin. Usually this is accomplished by editing the skin's .ascx file. Since there are so many different skins out there, we cannot give exact instructions on how to do this. You can find a lot of useful information in the DNN Skinning Guide if you need assistance with skin creation or editing. The DNN Skinning Guid can be found at the DotNetNuke site.