The following JARs need to be included for Crowd to work:

commons-codec-1.3.jar
commons-collections-3.1.jar
commons-httpclient-3.0.jar
commons-logging-1.0.4.jar
jaxen-1.1-beta-9.jar
jdom-1.0.jar
oscache-2.3.jar
spring-1.2.8.jar
stax-api-1.0.1.jar
wsdl4j-1.5.2.jar
wstx-asl-2.9.3.jar
xfire-all-1.2.1.jar

The most important one here is the commons-httpclient-3.0.jar must be version 3.0 or higher because of a library change after rc3 otherwise the existing version of the libs can be used EXCEPT for the httpclient.

Attached are the new sample configuration files.