jar on classpath

[thufir]

I'm just trying to use activemq as here:

http://java.dzone.com/articles/java-message-service-jms

where is the JAR for resolving:

error: cannot find symbol ActiveMQConnectionFactor


I downloaded the .tar.gz from apache, just not sure which of the many 
JAR's in that download are needed to run the example from dzone.




thanks,

Thufir