Bard quests are not disabled. I went through and made sure all of them were working a while back, and standardized the quest text so it wouldn't be so hard to get a response.
Code:
quest::say("I have messages that need to go to - well, right now I have one that needs to go to Kelethin. Will you [deliver] mail to [Kelethin] for me?");
if($text=~/deliver kelethin/i || $text=~/deliver to kelethin/i || $text=~/deliver mail to kelethin/i){
Looking at it now, I could probably simplify that a lot more and make it even easier. Remind me after Kunark if anyone cares enough.