Well here is my
Photoshop CS Splash

Photoshop CS' Splash Screen can be change by doing the following:
http://www.tgtsoft.com/download.php
Go there and dl ResBuilder

Then open the file psart.dll in the photoshop folder

Now go to the Resbuilder's folder..then go into its Temp folder..which has all the contents of the .dll file

Find a .png file named SPLASHARTFEATHER.PNG

Now just modify that picture to something you like then save it as a .png file and overwrite the file in the Temp folder

(resbuilder should still be open) go to resbuilder and file save as

save your new .dll file somewhere and then replace the old .dll file with your new one in the pcs folder..(make sure you back up the old file just in case)