There is a hiccup in the WebSphere Message Broker documentation in the topics that talk about putting and getting test messages from within the WebSphere Message Broker toolkit. The topics that talk about putting and getting test messages in the debugging section haven’t been properly updated for changes in v6.1. The enqueue and dequeue functions are still available, but they are now within the much more powerful Test Client interface. If you are used to using enqueue and dequeue you can get to them by right clicking on a message flow, and clicking Test Message Flow to open the Test Client. In the Test Client editor there is a toolbar of buttons in the top right, these have an Enqueue and a Dequeue button. You can click on these to view the settings you are familiar with.
The Test Client itself has a lot more functionality than the Enqueue and Dequeue editors, and can put and get messages from nodes other than WMQ. See, Testing Messages Using the Test Client.
The current problems are being fixed, but the changes won’t be visible until the next documentation update.