Christian,
I installed over the 3.0 cart because that was the instruction I received from support@smith-consulting.com on 3/24, as copied here:
"To upgrade the cart you install over the existing version as you normally install a dnn module. All of your settings and product data, etc will remain intact.
Your existing license will work after you upgrade."
I have about 50 products on our live site where I am trying to upgrade the cart to get Product Level shipping to work. Is there a way to get the new version of the cart working without having to re-enter all of our settings and products? Any idea what the problem could be?
I will contact our hosting company and see about re-starting IIS and I will add the results to this comment...
UPDATE: The hosting company restarted IIS and our Application Pool, which did not help.... I am reverting back to our backup until I get further recommendations.
Thanks,
Shaune