Article:
  AJAX: How to Handle Bookmarks and Back Buttons
Subject:   Does not work
Date:   2008-04-10 23:11:20
From:   jmx33
Response to: Does not work

I had the same problem. The real "problem" here is the downloaded examples files. I think the dhtmlHistory.js file is a corrupt one. The live demos do not use the exact same dhtmlHistory.js (as provided in the download)
what i did was download the dhtmlHistory.js separately from the live demos. I did it using the web developer toolbar plugin in Firefox. All you need to do then is replace the dhtmlHistory.js file from the downloads(aprox. 27kb) with the new one from the live demos(aprox. 30kb). It should work.