hi there
now to fix the little voice chat icon (the white speaker) i suggest you go to this thread
http://www.wowinterface.com/forums/s...ad.php?t=13727
and as far as your holy light idea i would suggest using Clique (spelling?) which can be found in your spellbook, it has a tab of its own underneath your normal tabs. i dont use Clique myself (mage) but as far as i can tell from its entry in MazzleOptions i believe that you set it up so that wen you left click on a portrait (you or your party members) it will cast one spell, Holy Light for example. and when you right click a portrait it will bubble and when you ctrl+right click it will cast whatever. so basically you can set different spells to different buttons and modifiers. Like i said i dont use clique so you will just have to try figure that one out for yourself.
Hope this helps.
Sorcerous