[ZeroTigress]

http://forums.warpportal.com/index.php?/topic/153786-11th-anniversary-quest-mini-guide-updated-618/

Basically,
1. Kill event monsters.
2. Collect event items from event monsters.
3. Turn in event items for event points.
4. Get enchantable Red Beret [1] for 2000 event points.

Enchants are 200 event points PER ENCHANT for up to 3 enchants. (600 event points total) Magical Stone can be used to reset enchants if you get enchants you don't want.