Hello... A belated welcome! I am glad to hear that your situation is not as dire as you were lead to believe and so sorry for your excessive worry. Not that ANY diagnosis would not make us crazy because it is a scary place to find yourself. As you've read from the replies here, treatment and followup are very effective, especially for Ta. And the fact that you were able to speak to your doctor on a weekend is very commendable... not all doctors make themselves that available.
When you go to your next appointment, ask for a copy of your husband's path report for your own records. And, anytime there are labs/tests/etc., ask for copies of those. Some hospitals have online access for their patients so ask about that. Mine doesn't post pathology reports (I assume due to the sensitivity of the information) but most other records are available for me to login to view (CT scan reports, routine labs, etc.) which is very convenient since my doctor is 300 miles away.
Also, if you don't already, take a notebook with any questions you have had since your last appointment ready. It will help to get the most out of your visit with your urologist.
Again, welcome to our forum. I am glad you have found us to be helpful. I know how much the kindness and support I received here helped me during those first very scary months, and still three years later.
My best to you both!