EBB provides groups of statusbar style indicators to show (de)buffs currently affecting your char or some other units (currently focus, pet and target). For the player, it can also show indicators for temporary enchants place on it's weapons.
Due to changes Blizzard made with WoW 4.x it's no longer possible to cancel buffs without the use of secure frames. Currently EBB limits canceling of buffs to out-of-fight since using SecureAuraHeader would have required a major code restructuring. This will be coming in a later version.
Version 2.x is a total recode based on the Ace2 framework which became necessary in order to support some of the longtime wanted and suggested features. It's now possible to show different groups of bars which can be configured in many ways. Each group can be assigned an individual look and filter settings. EBB can be configured via a dropdown menu which is accessible via chat (/ebb config), FuBar plugin or (for the group settings) by right clicking the groups anchor. After setting up a group, its anchor can be hidden by alt-left clicking a bar or the anchor itself in order to lock the group in place.
In order to get additional bar textures and fonts for EBB simply install SharedMedia which is available for download under http://wow.curse.com/downloads/wow-addons/details/sharedmedia.aspx
If you have bug reports or feature request, create a ticket: http://www.wowace.com/projects/elkbuffbars/create-ticket/
You can also check my thread at the WoWAce forums: http://forums.wowace.com/showthread.php?t=5290
The most recent development version of EBB is available directly from the WoWAce SVN via http://www.wowace.com/projects/elkbuffbars/files/