Continuing saga . . .
. . . per the post above:
I have eliminated the 1st session "TaxRate" seemed redundant (& less info?).
In the "Bindings" panel there exist items named:
Fiddling around with those values in the "isset" sections in the "CustomerInfo" & "Checkout" pages has allowed the blank "Checkout" page to display.
Sometimes . . .
Certain combinations cause the clicking of the "Proceed to Checkout" button (CustomerInfo pg.) to bypass the Checkout page & go directly to:
webscr (btw > correct address for PayPal Standard?)
That URL is the ReDirect string for the "Checkout" page "Checkout" button . . .
The other original problems still exist > the failure of the info collected on the "CustomerInfo" page (billing & shipping) to appear on the "Checkout" page (billing & shipping, plus read-only shopping cart) so tax can be figured into the total. Binding value (sample field from "Checkout" pg.):
<?php echo((isset($_POST["billFirstNameText"]))?$_POST["billFirstNameText"]:"") ?>
Also, the column value (Color) in the Shopping Cart section (Checkout pg.) fails to carry over from the 1st "Shopping Cart" page, and (most importantly) the "TaxRate" is not shown/calculated. The Recipe360 instructions were followed . . .
Thanks in advance . . .