Hard to explain :O)
I just release a new version for my Ko! Custom Gift Certificate.
A lot's of people is asking how to place the amount of the card on the preview, It was hard to explain how to do it :O) and I release a new version with those new options.
Now you can tell the system to display the price and / or the terms on the card preview.
Also I 'm working on the card designer, for version 2.0, this one will be a great addon, it will be easy to modify cards (the designer work like photoshop) and with this new option the component will work with different card size and model, very cool. very soon...