In a few days ?? Good luck ! Seam is huge. I enjoyed both "Seam Framework: Experience the Evolution of Java EE" and "Seam in Action". Either one will help you get started.
Personally, I like to know the core stuff before looking to the higher abstractions.
If I were you, I will take a crash course for JSF/JPA.
Some people try to learn multiple things simultaneously (learning Ruby while learning Rails), this approach doesn't fit my mind.
Don't get me started about those stupid light bulbs.