ok, thanks matt got the thing to work. Let me explain, I deleted BOTH folders 'JRiver' and 'Media Jukebox' both in the 'Program Files' folder.
Thing is when I reinstalled the app, it creates the 2 folders again but putsd the skin into the 'MJ' folder, not the 'JRiver' folder.
The 'J River' should not really be there, right? Shame to have two folders when one could be obviously enough. In the 'J River' folder there is: C:\Program Files\J River\Media Jukebox\Data and the .jmd files (playlist saves etc).
All I did with the registry addition was to point to not the route within the 'J River' folder, but rather leave this out of the route altogether, so it looked in the 'Media Jukebox' folder instead. Worked like a charm.
Thanks for the comments on my site, that was a personal thing before I got sucked into the corporate industry bigtime and now do mainly online casinos!!! If I get around to doing a skin, I shall do, would be great. A skin making manual somewhere for this app or is it straight-forward?
Thanks.