Im not sure if iPhonelist works the same as iPhoneBrowser, but go to var/root/libary/summerboard. Make a folder inside the Summerboard folder named the theme, put the Wallpaper, Dock, and/or Statusbar. Make sure they are named exactly that way. Then, make a folder named "Icons", needs to be capital I. Then put all of the icons in there, but they need to be named exactly how the app shows on your springboard. And with customize images, private/var/root/library/customize. Then just fid the folder your images pertain to, make a new folder named Custom, and put them in there.