Hi Dee,
I just tried to re-produce this issue on my test portal and was unable to reproduce the tab issue you described above, but I may not have the exact same configuration as you. Can you login to our test site http://www21.smith-consulting.com/ and try to replicate the error. This will determine if the issue is with the latest version of the cart or an issue with your specific dnn portal/cart install.
Please email me at kevin@smith-consulting.com if you need login credentials.
Thanks,