What is the best way to add objects to the area which contains the logo? I am using dnn 3.2 and using the default skin.

I definately want to add a different logo to the website. Also, I might want to add some other things in the area above menu. What would be the best way about doing this? I'm using the default skin, what file would I need to modify?

I'm thinking I need to add another pane to the default skin. Would appreciate some help with this if this is what I should do. Should I modify one of the files in the "C:\DotNetNuke\Portals\_default\Skins\DNN-Blue" folder? If so, do I just open the file, make the changes, then copy back into the folder?

Also, I enabled banners at the host level in site settings. It placed an example banner next to the logo area. In this banner it says to use the vendor module to manage site banners. How do I get to the vendor module?