Hi - choose a WSTF scenario to play with:
SC002 - Notify-Echo
SC003 - WS-Addressing
SC004 - WS-ReliableMessaging
SC005 - WS-MetadataExchange
SC007 - WS-AtomicTransactions
SC009 - Purchase Order Service

Coming soon....
SC006 - WS-SecureConversation

For issues/questions please contact Doug (dug at us.ibm.com)
Note: this endpoint is not an official release of WebSphere, please see the other IBM WSTF endpoints if you want to test against an official version of WebSphere.