It appears they didn't get very far, despite 11,267 signatures to the petition:
http://www.creationoutreachministries.c ... d-outcome/
COM feel that NMNI’s refusal to acknowledge the views of both a large proportion of Northern Ireland’s population and the submitted petition of 11,267 people is a disservice to the public. We would like to take this opportunity to thank everyone who helped to organize the petition, and who signed the petition. A simple display reflecting the alternative views could be implemented without detracting from the visitor experience; in fact this would enhance it! It is the hope and prayer of COM that contemplation of the Genesis creation account will cause some people to question the naturalistic Darwinian worldview and through God’s Word discover the truth of human origins and the way of salvation through the Lord Jesus Christ.