Hey Bonk. This is how I got the branding image for the directory server installer:
special note: the image used has to be installed on the HD for it to load up.
1- You need a custom 'page' that calls a function to set the brandimage.
;--------------------------------
Page custom brandimage "" ": Brand Image"
Page license
Page components
;Page directory
Page instfiles
UninstPage uninstConfirm
UninstPage instfiles
;--------------------------------
2- Still at the top, you need to set the size of the brandimage window:
AddBrandingImage top 200
3- At the end of the script, have this function (which is called by the custom page). It installs the image into the standard windows temp directory, and sets it as the current image to show.
Function brandimage
SetOutPath "$TEMP"
SetFileAttributes mainlogo5.bmp temporary
File mainlogo5.bmp
SetBrandingImage "$TEMP\mainlogo5.bmp" /resizetofit
FunctionEnd
-- FIN --
Bonk: You own me a splash image howto.