If anyone is interested in reading any of the articles from E&P, here are the links:
Colbert Lampoons Bush at White House Correspondents Dinner -- President Not Amused?
Pressing Issues with Greg Mitchell (Bush WMD Skit)
To read Colbert's speech in its entirety go here.
I was able to find the torrent at mininova of the speech, but you can also watch it on RP from C-spans -- here is the search results page, just click on the 2nd search result. Colbert White House Correspondents Dinner Video.
I know the internet has been abuzz about this and if anyone can link to other articles of interest regarding this, I would appreciate seeing them.