Problem solved!
No information posted prior to the resolution of that, due to be
involved with this work. So already received some reports that the
images were visible. Yes! The problem was resolved and the images are
displayed!
It is important, however, make clear that the problem was only
solved when you read the excellent article BillKrat in
http://forums.asp.net/p/875535/891513.aspx # 891,513. Despite
addressing a reality a little different from mine, the answer given was
essential so that I resolved my problem.
Thanks to everyone who somehow tried to help me on this issue and Shaan you for your attention.