$(".drupal-tabs:not(.tabs-processed)", context).find("> ul").tabs is not a function

Hi,

I am using the tabs project along with cck fieldgroups to show tabs in a node add form. It works on my local machine, but when I put it on the hosting site, I am getting some javascript errors as below:

Error: $(".drupal-tabs:not(.tabs-processed)", context).find("> ul").tabs is not a function
Source File: http://site.gradnxt.org/sites/all/modules/tabs/tabs.js?D
Line: 30

I am using the latest version of all modules. Does anybody have any workaround for this issue? I have searched and searched and can't find anything.

Regards.