It will not only describe how to put adult wallpaper onto your phone, but it will detail how to get any image onto your phone.  If you have a local provider which your cell phone operates on, the first thing that you should do is contact them and see if they carry such wallpaper.  If they do, then you should download it from thier server. 

You can do this from your phone by accessing thier server or the web on your phone.  If your provider does not carry that type of wallpaper, what you can do is download the images that you want off the internet and upload them to your phone.  You do this by using the USB cord that comes with your phone and then selecting the upload or transfer feature, to get images onto your phone.  This is the easiest way to get any image onto your cell phone.