free composite sub product

Hi, thank you for your plugin. we are testing it and we need to create normal composite product ( done !! ) and a FREE composite ( gift wrapping) with FREE components …but we create the sub components products with 0 price and they are not showing in the composite…. i think because of the 0 price..no? but we don’t want the user to see any price for this product, is toally free…. how can we achieve this? thank you

The page I need help with: [log in to see the link]