OK I did it but when I uploaded the new html content, I got blank page on the whole site.
Now I reloaded the 'old' html folder (and kept the VMUIkit 3 component + the OPC 3 plugin) and the site is back. I simply copied the new html content into the html folder of the template as usual.
I reloaded the new html content but I got still blank page on the whole site, may you please take a look?
The trial directory where I installed VMUIkit3 is /finaltest while the main site under development (with the VMuikit 2 version) is /a-final
UPDATE: Here is warning and fatal errors I got
Warning: require_once(components/com_vmuikit/libraries/joomla/thirdparty/virtuemart.php): failed to open stream: No such file or directory in /home/yourmusi/public_html/a-finaltest/templates/yoo_sixthavenue/html/mod_virtuemart_cart/default.php on line 13
Fatal error: require_once(): Failed opening required 'components/com_vmuikit/libraries/joomla/thirdparty/virtuemart.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/yourmusi/public_html/a-finaltest/templates/yoo_sixthavenue/html/mod_virtuemart_cart/default.php on line 13
OK solved. For some reasons when I installed the component v3 the 'Libraries' directory were not uploaded by the installer (i I installed the component 3 times!) and it caused the mentioned problem. Then I uploaded it manually and now it works but the site became terribly slow.
Then I tried the Musiclist layout because we have 3 sites of musical instruments large dealres but it looks quite strange with buttons so big and under the image instead of on the same row (like in your demo).
So I we will remain on verison 2 for now .
Sorry, one more question; I don't know if I can ask here or have I to open a new topic anyway: About image on product details page: I would like that lightbox opens the image as larger as it is and not resized. See the link at the 'Site URL' field. As you may notice the original image is 1200 x 359 px but lightbox is definitely smaller.