Dana,
First, yes--noninvasive is good. Ta or T0 is best because that is just surface layer. T1 is called non-invasive by some because it hasn't invaded the muscle yet but it is through the innermost layer of the bladder. Some also call this invasive.
T2 is muscle invasive....
Here is a link that explains it:
Bladder Cancer Stage and Grade
You said he had a lot of tumors. If you haven't lined up a doctor at one of those top bladder cancer places, now is the time to do so. He should have a re-TURB 4-8 weeks after the first one to be sure that they got everything.
What is his doctor suggesting as the next step based on the pathology report?
Mike