Importing user  profiles - used to import  the user properties from any directory , by default - from domain controller or some other directory as ADAM using LDAP parameters.

main reason behind this import is to sync the user properties in the directory at par with moss user profile.

Eg - if the user mailid or office location is changed in AD, user profile  service will sync the moss user profile.

Adding user profile - some of the services accounts such network service/enterprise domain/ domain admin account not imported by the profile import can be added via add user profiles

one more doubt
for adding user  profiles is there any OOFB method or do we need to do that thru code

you can add the user  profiles without writing a single line of code or if you want to add 1000s of profiles  from some existing profile  database then you can write some user profile import  code.

You can add the user profile manually using the SSP Administration page, Check the User Profile section and click on New User profile.

That will allow you to add user profiles thru the SSP Admin UI.

you can add the user  profiles without writing a single line of code or if you want to add 1000s of profiles  from some existing profile  database then you can write some user profile import  code.

You can add the user profile manually using the ssp  Administration page, Check the User Profile section and click on New User profile.

That will allow you to add user profiles thru the SSP Admin UI.