A while back I had an addon that displayed an arrow and pointed in the direction I needed to go to finish my quests in the optimal order.  I think it worked with Quest Helper.  I have lost this addon due to reinstall.  I don't know if I don't have something enabled on an addon I have, I don't have the right addon, or its just not compatible with 3.0 yet.

Any help would be nice.

I had issues with Questhelper as well before the last patch. It would only show my quest info once I went and got say an itme for that quest, then Questhelper would start to show up for that quest only. I deleted all my stored data variables from every folder I could find with questhelper in the name, then updated to the newest version.

It also could be the mod is broken, but I have not updated my addons as of yet. Give it a try and see if it helps you.

I used Quest Helper, but I switched to Carbonite Quest. NOt only does it have the arrows, but if you have aguilding or friend that uses it it will show you were they got all their drops