The electronic tickets can be ticketed at EL AL branches directly or through your travel agent. After ticketing, you will receive authorization with the flight details by fax or email (no need to go to your travel agent to pick it up).
Bring this authorization with you on the day of the flight and show it to the security personnel at Ben-Gurion Airport. They have been instructed to honor it. After the security check, take the authorization to the EL AL counters to check-in and receive your boarding card.