hey Neddings,
thanks for the patt on the shoulder, thats always appreciated :)
I hope the multi-language thing will keep developing over time, my experience is that its not always simple to keep volonteers on these jobs - there is an spanish and a russian version on the way, but I have no ways of telling when they will be finished...
What you are looking for tree-wise (if I got you right) is already implemented in the profile pages on the current skin - theres only child mixes and the parents of the current track shown, not the full tree of the session template.
If you visit the new skin on the dev.wikiloops.com domain, you will find the tree also available on the standard jam pages (tab remixes shown below the player) - this tree now features all available branches of the session template :) So i hope that request is already tackled.
As for the two coloumn design with the alternative mixes shown on the right, I kept that in the new skin as well - its a common look like featured by youtube, but maybe I have not understood the benefits of your proposal there... I have tried to make sure the new skin requires less scrolling and zooming, wich can be quite annoying, especially on mobile devices.
I hope to be ready to launch the new version any day now, having both skins online in parallel causes some extra bugs like the ones some noticed on their old walls. Feel free to hint anything you come across at me, thx a ton :)