I am new to richfaces....

I am using richfaces 3.1 jar file....

I am using pickList to populate list of applications in (that is on the left hand side) the pick list ...
user can select the applications (that is on right hand side) ... i am inserting into database the selected applications...

When the user want to update i want to populate the perviously selected records... that he selected... perviously...

please help me...
shashi