Angelo --
Thanks for this specific reply.
Although iTunes now has my logo, unfortunately the logo does not appear in the "Performing Arts" section of the iTunes Store. But when a do a search on my podcast there, the entry, including logo, appears in the List part of iTunes. However, I could not find any "Send email to a friend" entry at all.
But when I right-clicked on my podcast logo, a "Copy iTunes URL" message appeared. Selecting this provided the correct number that I then entered into the Blubrry Basic Settings. And now the ping test is successful.
I include the info above in case someone else has the same problem.
SC