Just got an email from them...check it out:
"Our v4 CCIE R&S Lab Workbook is expected to be released in late December, 2006. The new v4 will cover the addition of the two Catalyst 3560 switches added to the lab by Cisco on November 13th, and will cost $495 for the printed version / $379 for the electronic version. You can preview our new v4 workbook by downloading the new sample lab, available here at this link:
http://www.internetworkexpert.com/downloads/iewb-rs.sample.lab.pdf
In the sample lab document, you'll also find our new 4-switch topology."