Hmm never heard of a gift card holder! Wonder what it's for, other than giving away - do you put a card you've made in it as a sort of extra wrapping? Or maybe money?
Good tutorial at http://pamcards.blogspot.com/2009/04/scor-it-week-at-365-cards.html though.
Being a bit thick, I couldn't work out how the last bit goes, so after a bit of faffing thinking the big piece of folded card would have it's fold on the right and the pocket being ridiculously badly fitting, not like Pam's pics at all, I worked out the fold probably should be on the top, then the pocket slips onto the bottom of the front, with flaps wrapping round to the back (which frankly just shows that I'm a creature of habit, I only have top folds if I've glued my card together without concentrating).
Then when it stands up there's a pocket to put something in. But at the sizes we are using today, what? It only stands 3.5" high by 4" wide.
I've had another look at Pam's blog tutorial - it looks like the pocket is on the inside from the punch pic? So I got it wron, but if so, what is being held and where?