Dear Philip Gibbs,
you say: ''He thinks temporal causality, space and time must be fundamental because they are how our mind perceives the world.''
Kant distinguished between the reality as it is in itself (noumena) and the world as it appears to us (phenomena)!
According to Kant, space, time and causality are NOT fundamental to the reality as it is in itself!!! Space and time are just pure forms of sensible intuition in which we receive sense-data (intuitions) and perceive phenomena. They are fundamental to the way our brain creates our experience of the world (phenomena). Causality is the product of our understanding (look at Kant's table of the categories and the second analogy of experience). The understanding prescribes laws to the appearances in space and time. But causality is not the property of things-in-themselves. Kant build his philosophy using Hume, Locke the rationalists. He agreed with Hume in some sense.
you say: ''Relativity and quantum theory have shown us that the intuitive instincts that are programmed into our mind are not the way the universe works.''
I don't see any problems with 20th and 21st century physics and Kant. Actually Kant's philosophy predicted modern physics and is compatible with it. Just look at ''the Postulates of Empirical Thought'' in the light of quantum physics. You probably hold space, time and causality to be the properties of things-in-themselves. That's completely wrong.