Install simply by dropping both the Interface and WTF folders into your WoW install directory then change the folder names in the WTF folder to those of your own (Account name, Server name, Character name).
When you log in for the first time, you'll be greeted with a screen that looks similar to this: http://i30.tinypic.com/2nqzds6.jpg
From here, you need to type /bt4 *enter* and then go down to the Profiles option. From there, you need to select Jelly - Burning Legion. Then select MicroMenu, enable it and disable it. I'm not entirely sure why it doesn't ... stay disabled, but it doesn't. Close the Bartender options. Move Carbonite Quest around to wherever you like it; personally, I close the map and nestle the minimized quest log under the Minimap. You should have something similar to this now, depending on what you did to Carbonite: http://i27.tinypic.com/14iipgm.jpg . Now, to setup Recount. Click the cogwheel on the main bar of Recount to open it's settings. Then click the Window tab and lock Recount Windows. After that, click the Appearance tab and select Teen for the font and Minimalist for the texture. ZOMG FINALLY, click the Color tab and make the Title and Background transparent. Close the Recount Options. Hit Escape, click on Interface, then Addons, then ButtonFacade. Select Caith as the skin for both Bartender and Buffalo. Click Ok then Return to Game. Reload your UI by way of /rl *enter*.
A couple things to note:
* Your player border should be your class color however, I've found that with porting my UIs to my different characters that this is not the case. To fix this, you need to unlock eePanels (it's one of the cleverly hidden mm icons on the right side of the map; third from the bottom). Click it, then lock the minimap frame (so you don't move it, like I did a million times). Go down to the Player - Border frame and click Edit Script: http://i30.tinypic.com/2a9beo7.jpg . Do not change anything but just click "ok." Then do the same for the Target - Border frame. Once you have done this, target something and your player border should now be the color of your class: http://i32.tinypic.com/a1mw3s.jpg . In any case, if this doesn't bother you, it's just a novelty anyway.
*While I have included Xparky, I have NOT set it up and therefore you will have to yourself. Sorry.