This is how to create a cfg file, put your info in this and ftp i.e transfer it over to toyour box with flashfxp or filezilla.
Once in your box you will see the files of your box, click on teh name ETC and go into that folder, then place your cfg file in there.
As regards how to on other things i.e to start a cam etc you will need to let us know what box and firmwre your running.

open a text document (this will become your cfg file)
write whatever u want and have in the text document
click on file>save as
write CCcam.cfg in the name (the first 2C's must be caps)
in the "save as type" choose all types
click on save
now u have ur cfg file
ftp the file to /etc