After whining a bit, I magically found those damn numbers that wouldn't let me progress on the skin (yes, it was magic to find it on a heartbeat after searching so much time for it among so many other numbers).
Like they say, it was there all along, but buried under another hundred numbers heh. It was so stupid that I didn't want to ask anyone who might know somehow, but finally found the script line mixed with the xml that wouldn't let me have a properly Playlist height under different scenarios.
Anyway, too technical and hard to follow. Most people will jump directly to the screenshot XD where you can see the properly working Playlist and the new Skin Settings page (everything is bigger and nicer, yeahhhhh). Now I'll move on to finish the EQ and some other stuff before publishing the new beta (in a week or so). Thanks for the support guys!