This is what I've found published for the '584. It mentions the 2006 reex request #'s but not a certificate. Below the drawing it mentions the amended claim 29 but I'm not sure if this is the actual reex certificate for the reex requests of 2006.
Here's the link FWIW:
http://www.uspto.gov/web/patents/patog/week29/OG/ExParteReex.htm
Click on the link for 05784584 in the column on the left.
GLTAL