I am remastering 6.7.1 Live CD. Which file(s) I have to modify so that my application ( wxGTK application) runs after booting. I can now boot up the remastered iso and run the application manually from Terminal in su mode.

I have checked all available links on the net including the Remaster document, using which I am anyway doing the remastering. So, please give me a specific answer ( I am waiting for 4 months) just to get this simple answer from other forums.