Hello there, it is now working, I have found this link http://codex.wordpress.org/Post_Thumbnails#Setting_a_Post_Thumbnail and it works for me. apparently you have to integrate woommerce plugin with nlanco theme.
let me know if it works for you. thanks
etlnivre80 i also passed Your problem, I just bought the theme and I have the same problem. 1) The images are not seen, only see a white box in homepage featured images 2) The product page does not show me the gallery with additional images of the product. If you solve something let me know thanks