Hi Dave,

I've emailed over some new very detailed setup instructions... but if it helps anyone else I'll put them here too:

ZEN CART SAGEPAY FORM

Designed by: Jeramie Risinger, gapc23, Bean Fairbanks
License: This product licensed under the GPL. See attached license for information.


========================================================


BEGIN BY PRINTING THIS, IT'S FAR EASIER TO REFER TO THIS IN YOUR HANDS THAN ON SCREEN.


========================================================


HISTORY:

22/07/2009 - Initial Release, version 1.0


========================================================


REQUIREMENTS:

*SagePay Form account

*cURL is required and MUST be compiled into PHP with SSL support

*SSL Certificate

*Port 43924 open for bi directional communication


========================================================


NOTES:

SagePay is the new name for Protx.

This module can be used on any one of the three modes that SagePay offer (simulation, test or live.)


========================================================


HOW IT WORKS:

Customers confirm a purchase in your shop, when they checkout the amount and
address is forwarded to the SagePay website. The client then enters their bank account
details. SagePay communicates with the customer's bank, then returns the customer
back to your shop. SagePay sends out a confirmation email, as does Zen Cart, and you
can then administer the transaction from the admin screen.


========================================================


NEW FILES:

includes/modules/payment/sagepay_form.php
includes/languages/english/modules/payment/sagepay_form.php


========================================================


MODIFIED FILES:

None


========================================================


INSTALLATION:

The files are arranged in the same structure as Zen-Cart v1.3.8a

When you open the SagePay_Form, you'll see a folder called "includes"
copy this into the root of your shop, so it merges with the existing
folder called "includes".

Login to the admin section of your zen cart shop. Go to "Modules", then "Payment"

Select SagePay_Form from the list.


========================================================


SETUP:

Set enable mode to "true".

Enter your SagePay vendor name.

Enter the encryption password provided by SagePay which is unique to your shop.

Set transaction mode to "test".


========================================================


TEST MODE:

SagePay require you to complete at least one payment in test mode & refund it before you can use their live server.

Leave the admin screen and go back to the front end of your shop. Make a purchase with SagePay as you would as if you're a customer.

When you hit the final checkout button you'll be directed to the SagePay test server, which has "test" written on the background.


DO NOT ENTER REAL CREDIT CARD DETAILS ON THE TEST SERVER, THEY WILL NOT WORK.


Select a credit card type to pay with and use the corresponding card number:

VISA - 4929000000006
MASTERCARD - 5404000000000001
DELTA - 4462000000000003
SOLO - 6334900000000005 - Issue 01
DOMESTIC MAESTRO - 5641820000000005 - Issue 01
AMEX - 374200000000004
ELECTRON - 4917300000000008
JCB - 3569990000000009
DINERS - 36000000000008

The "valid from" and "expires" date can be anything.

You will also need to supply the following values for CV2, Billing Address Numbers
and Billing Post Code Numbers.
These are the only values which will return as Matched.
Any other values will return as Not Matched.

CV2 - 123
Billing Address Numbers - 88
Billing Post Code Numbers - 412
You will also need to enter the 3D Secure password as " password " (it is case sensitive)
so that the 3D Secure authentication returns Fully Authenticated.

When testing be careful when repeatedly buying the same dummy product, this can create
problems producing an order number when you return to your website after the
transaction has been completed.


========================================================


SAGEPAY:

Login to SagePay (Google "Login to SagePay" to find the relevant screen) with your username and password.

Note: don't do this with your "main" admin identity, instead you should setup another identity with your admin account, give it all permissions by ticking the row of boxes, and login as this.


Search for the transaction, select it, open it, and refund it.


Now contact SagePay (tel: 0845 0554454 ) and tell them you're ready to go live.



Then you're good to go back to the admin screen, modules, payments, SagePay, transaction mode, and change over to "live".