Thanks for the reply Kny.

Your description of the startup file sounds a lot simpler than what was mentioned in the thread I linked to in my original post.

I have been able to SFTP into an iPhone from VB.NET before, so I'm pretty sure the file transfer stuff should be simple enough, once I have OpenSSH and becomeroot setup.

I'll look into the .xinitrc file syntax and post any questions here if I get stuck.

As for the actual settings I want to adjust, here is a quick list:
1. Launch Firefox on startup, without seeing any other GUI (desktop, menu) before hand.
2. Force firefox into fullscreen mode when launched. So the boot sequence would be splash screen > firefox fullscreen, nothing in between (other than maybe a blank screen at worst case).
3. Change the startup screen images (I have found information on that, so should be right).

Number 2 is the most important, so any pointers to acheive that would be greatly appreciated.

Thanks again!

Edit: Just so you know, I dont have a N800/N810 yet, but I am getting one next week hopefully so just want to be ready for when it arrives.