I prefer the Blue3Wide skin in black so I monochomed some of the skin gfx (v1.02). Extract into 'MediaPortal\skin\Blue3wide\Media' over current files of same name. Backup the folder first.
You may also need to delete the 'C:\Documents and Settings\All Users\Application Data\Team MediaPortal\MediaPortal\Cache' folder and restart mediaportal.
You may also need to delete the 'C:\Documents and Settings\All Users\Application Data\Team MediaPortal\MediaPortal\Cache' folder and restart mediaportal.