Everything doesn't work anymore after upgrade!

[broc93]

I've done a great mistake: I've upgraded my shop without testing it.
I just saved the files of the older site via ftp.
After the update, I noticed that one the pages (like this one http://www.dietabenesserehl.it/contatti/assistenza ) that use Joomla! articles instead of virtuemart pages, the drop-down cart is fixed and doesn't move.
Moreover, on Firefox when I click "add to cart" button, it doesn't do anything, while in Chrome it works fine.
I thought I could "downgrade" the VirtueMart back to 2.0.10 uploading the older site.
Now I have a mix up of old and new. What shall I do?
Thank you in advance for your help, I'm really messed up.

[PRO]

looks like its working now

[broc93]

Not really! I can't add things to cart using Firefox browser.
And on some pages the green drop down thing at the top of the page doesn't hide if you click on the cart on the left....

[PRO]

you have javascript conflicts.

The problem is not with vmart

1 thing to note vmart is now using "facebox"

instead of the modal popup window for images.

I do see the modal javascript in your site.

is this a commercial vmart template?

The layout overrides probably just need updating

[broc93]

is this a commercial vmart template?

Yes, it is. It's LineLab's Colorshop template.

The layout overrides probably just need updating

How? Sorry for my stupid question 

[jenkinhill]

You chould ask VirtueArtcz about updating overrides for that template: http://www.linelab.org/

http://forum.virtuemart.net/index.php?topic=108212.0