http://support.microsoft.com/kb/314546

Step 4: How to move jobs, alerts, and operators

Step 4 is optional. You can generate scripts for all jobs, alerts and operators on the source server, and then run the script on the destination server.

•To move jobs, alerts and operators, follow these steps:

1.Open the SQL Server Enterprise Manager, and then expand the Management folder.

2.Expand SQL Server Agent, and then either right-click Alerts, Jobs, or Operators.

3.Click All Tasks, and then click Generate SQL Script. For SQL Server 7.0, click Script All Jobs, or Alerts, or Operators.