unable to view images (error 403)

Hi! I’ve just moved my content from my old wordpress.com (urbanroamer.wordpress.com) blog to a self-hosted site (www.theurbanroamer.com) via wordpress.org and put my old wordpress.com site to private when it was all done. all my content was transferred ok except for issues with some of my photos. when I visit my old posts that were transferred, I noticed I got broken link images and when I click on them, I get a wordpress error saying “403: Access Denied — This file requires authorization” and I can only view the photos if I am logged in to wordpress.com and/or if I set my old site to public. that being said, is there anything I did wrong in the transfer? moving forward, what can I do so I can let others see the media without having to log in to wordpress and/or having me to set my site to public? thanks to anyone who can help me on this one!