Its easy to add programs to start when you start gnome from login, just run ALT+F2 and enter ......... gnome-control-center ...... and then click on 'startup applications' and then 'add'. Enter a short description of the program, and the path to its binary. Then close to bring you back to the gnome control center and then close that. When you next login your programs will be automatically started.
Using this method I've entered ;- kwikdisc, gdesklets, and gkrellm.