You can download jbm examples for AS 5.2 here:
you need jbm-examples-1.4.3.zip.
Unzip it after downloading and copy the extra folder to your AS home. For non-cluster examples, just cd to the specific example folder and type ant. For clustered examples, please read the readme.html included in each example's folder.
Howard you should make an announcement/blog etc about this.
Yes, I just forgot that. :)