upgrade to VirtueMart crapped my site... HELP! Cannot add to cart & empty cart

[shutthepopup]

hello.

Joomla Version: 2.5.14
Virtuemart: 2.6.0a

I currently upgraded VirtueMart due to security issues.  I upgraded to version 2.6.0a uploading...

com_virtuemart.2.6.0a.zip
com_virtuemart.2.6.0a_ext_aio.zip

Website: http://710-south.com/

If you click any product it wont ad to cart and my cart is empty.  I am a total N00b and would like to ask for your help and see how can I rectify this.  I can always go back using akeeba backup but it defeats the purpose of upgrading.

Any guides from the experts?  thanks in advance

Please help.

[GJC Web Design]

adds fine from here and is in cart when I go there
the site has layout problems but that is your template.. not VM

ask joomlart  - it is their template..