Was there ever an answer to this issue?
The same thing is true under F17 using the KDE desktop. After a fair amount of both Googling and experimenting have not been able to add an application menu to Cairo-Dock under F17. While tolerable, the configuration of Cairo-Dock with the application menu under F15 was MUCH more convenient and usable
Kernel - 3.5.1-1.fc17.x86_64 #1 SMP
KDE - 4.8.4
Any insight or suggestons would be most welcome