Started this over at vB.com, have submitted a feature request, hoping there's an interim solution...
http://www.vbulletin.com/forum/showt...-to-quot-links
In flat view mode sometimes it is difficult to tell who is replying to who. In FUD (which we used to run) this was solved by including a second link next to the post number... i.e. "#7 is a reply to #2". Is there any way to do this in vB?