not sure what I did, but in trying to customize e-mail CC functionality(thin I undid all changes)...
I now get a blank page when I put an item in the cart, and hit Checkout:

https://gouette.com/zen/index.php?ma...ckout_shipping

that page is now blank, instead of a checkout...

man, I will bow to whoever points me in the right direction.

I assume at this point that did it, since it worked be4 I started putzing with e-mail related php files...but I thought I had undid modified files.

Advanced apologies that there's not more solid specific to go by in terms of what was changed.