Krishna,
Thanks for updating your display name.
WSAD/RAD come with sample applications for many technologies including EJB. This helps a lot because you can see it in the
IDE.
For detailed step by step instructions, I find that the IBM Redbooks are very useful. For example, the
WSAD Programming Guide. As Masoud pointed out, RAD is the current version. WSAD 5 is ending support this year. So in addition to starting out with EJB 2.1 instead of 2.0, you will skip a migration step.