Adding Applications to Launch Panel

["Chandan M. C." <chandanmc cdac in>]

Hai all ,

  I am building a debian based distro ..I want ,  After installation of 
the OS , the frequently used applications such as Openoffice tools
,Firefox ,k3b should  icons should be made available in the launch panel
by default ..Which Pacakge I need to edit ..How can I do that .. 

Regards
Chandan