To get a image on your BB you can:
A) Visit the site with your BB and save the image.
or B) (this was posted before in an older link but was lost)
1. Find the image you want to upload.
2. resize it to H= 140+/- x W = 260 and save. I would recommend using another image viewer besides MS Paint or MS Photo Editor. They do an awful job at resizing. Try Irfanview or another 3rd party photo app.
3. Then go to http://www.comfx.com/g.php
and upload your image resized image.
The site will spit you a url link back that you can email to your BB or manually type in the link.
There ya go. Hope this helps.