Just release a new version for my Ko! Custom Gift Certificate v1.2.0, for both Joomla version.
In this new version I give the plugin much more power. You can now create a text link on a specific card with a specific price and all the other option between. Check the new demo with Mosets Tree. And also I did a little doc in the forum to show how to use the new features.
Also it is fully integrate with VirtueMart. And I'm also ready to add more shopping cart, if you use a different shopping cart let me know the name and I 'll do the integration.