**2ndchance** Use a file explorer program such as Resco File Explorer or Total Commander and grab the file with the name "welcomehead.96.png" (without the ") located in \Windows and that's wat u have to edit to change the startup screen.
I personaly use Total Commander and all i did was copy the welcomehead.96.png to my SDcard, then click+hold on the file (that was in the SDcard, not in the \Windows directory) and went to properties and unclicked "read only" "hidden" "system" and then brought it on to my computer, edited in photoshop and then brought it bak to the SDcard, went into the properties file again, and reselected "read only" "hidden" "system" and then brought it bak to \Windows directory then did a soft-reset. Everything worked fine for me...