First let me say that your story was wonderful - very creative and well written.
If an article [story/ tutorial/ interview] is featured "within the pages of the Renderosity Magazine" - the Magazine's Publishing Agreement states: The Contributor agrees not to submit an article, in original, excerpted, or other revised form, to any other book or magazine publisher, web site, or digital media publisher unless and until 90 days have passed following the date of the article's publication in Renderosity Magazine.
However, articles featured within the CD - have no re-submission restrictions.
In short - you are free to re-submit your story to another publication.
Thank you so much for your contribution and we hope you will submit another story to us in the near future.
Renderosity Magazine Co-Editor in Chief