Do blind people see in their dreams?

Do blind people see in their dreams? If so, what and how?

Today I had the pleasure of meeting Jack, a 60 year old pensioner, who lost his ability to see due to old age 2 years ago. He explained that his dreams still feel 'very much alive,' that he could still 'see' thanks to his dreams but that with every year that passes the memory of the colours fade and that objects are only represented the way he remembered them. He also says he never used to be able to remember his dreams, but he remembers them clearly now. Jack can also still visualise objects when awake and draw them from memory.
I found further answer in this forum:
http://www.afb.org/message_board_replies.asp?topicid=638&folderid=3

This study:
http://psych.ucsc.edu/dreams/Library/kerr_2004.html

After reading those articles, what do you think?