Default Cooking my ROM and replacing splash screens

Hi,
I am expecting a barrage of people to tell me to search the various threads in the site but I wonder if someone would just clarify quickly a point for me:


1. On the Herald is it easy to change the splash screens - I have a number of PDA's and have tools to replace the splash screen on a Prophet. Can I use these to mod the Herald. Is the Herald ROM the same as the Hermes ROM for all the settings?

Kind Regards,
Sam.