I'm writing a BREW application on the AV CDM9900 and I need to save a
wallpaper image from the application.

The documented location to save the wallpapers is:

  brew/shared/wallpaper

but when saving the image there it is not browsable by the wallpaper
chooser on the phone's OS menu.

I've tried many other directories e.g. brew/shared/images, brew/shared/

We downloaded an existing wallpaper app for the 9900 and were able to save and 
view the image on the phone. However, the downloaded image is not visible via 
the apploader within the brew directory structure.