Thanks for that link - ( repeated here )
http://www.rushlimbaugh.com/home/daily/site_081805/home.guest.html
Part of the problem is that people kept saying it's on the site, but the normal homepage dosen't show it anywhere, so without the link you provided, it's hidden away in the pay section. If you didn't go there on the 18th you were out of luck.
Yeah, it's more a problem with the layout of the site than anything. The web archives are free, but to get them you have to click on a 24/7 archive link, so it can appear that they are pay only also.