Publishing Question (Image)

johnzzl

hi there guys could someone please tell me what this button does and why once I click it it does not allow me to select any image.
the button i am asking about is the portrait image button

my membership is pro.
thanks



http://img705.imageshack.us/img705/4497/problemkm.jpg

johnzzl

splash screen 320x 480 72dpi
PNG - default.pgn

thanks