If you are setting up a new server as a copy of the old server there is another way of moving jobs, alerts, operators and DTS packages. Backup the MSDB database on the source server and then restore it onto the destination server, but be very careful.

WARNING: Doing this will overwrite any current DTS packages, etc that exist on the destination server, so it only works if you want to create a copy of the server, not to ammend an existing version.

I cannot stress that last warning enough as rebuilding lost work can take days or weeks.