Regarding Screenshots of the flow servcs

Plz can anybody help me in providing the step to step procedures
of writing and mapping pub-sub flow with necessary screenshots?

Plz i need it urgently.Plz help
I am new to wM and i want to learn this technology.
Any steps which will be useful in understanding closely.

Please review this online documentation,it gives you some insights:

Publish-Subscribe Developer’s Guide.pdf
Messaging Programmer’s Guide.pdf

Also Broker and JMS section.