product layout

Yes. If course, if the HTML is not changed, then the browser sill display the same.
Anyway, that problem will be fixed in next version of HikaShop.

It's a bug of IE7 because when the wdith of all the divs of a row amount to 100%, the last one can be moved down a row by IE7 where the proper behavior would be to display it on the same line, like all the other browsers.
However, we can circumvent the bug by removing 1% to each div. That way, you never get 100% and IE7 displays all the elements on one row all the time.

You're missing something as the change isn't effective. I don't know why if you applied the modification as I said. We tested that modification on our end and the problem was solved instantly.

You have several templates on your website. So you need to do the modification for each template. If you do the modification to only one template, it will apply only to that template. That's why we weren't seeing the modifications. I added the modification to each template and now it's working.