I received a response back from Jelly Belly several days ago, but did not post an update because I felt that it contradicted what I was first told.
Basically: Yes, all the candy, including the ones you specifically mentioned, is made on shared lines. Follow-up email: No, wait, the ones you bought are not made on shared lines! ..........................
Today I received an email suggesting I post another blog entry since they sent an email to clarify about the gluten issue. Since I didn't feel it clarified anything, and there is still the issue that I got a gluten reaction to eating their products.
They did say they would forward on the suggestion (to someone) that they get certified by GFCO.
I wrote them back a few minutes ago and explained why I had not posted a blog entry in response to their last email and will see what I get back. I will post an update as soon as I can after they reply. Dealing with a non-glutening situation.