Hello Siva,
In the public.project.server news group, Dale Howard [MVP] explained that
most clearly than I could :
If you are serving as the Project Server administrator for your new
employer, and have administrator permissions with Project Server, you MUST
do the following to enter the resources into the system:
1. Launch Microsoft Project Professional and log into Project Server with
administrator permissions
2. Click Tools - Enterprise Options - Open Enterprise Resource Pool
3. Click the Open/Add button
4. Enter your resources in the Resource Sheet view
5. Double-click each name, add the Windows Account and E-Mail Address for
each resource, and click OK
6. Save and close the Enterprise Resource Pool
Hope this helps,
Gérard