Problems installing SagePay Form module

[Floob]

Hi,

 

I am currently using version 1.2 of the SagePay form module here:

http://addons.oscommerce.com/info/6983

 

It works fine. SagePay captures this as a Success URL (shown in SagePay admin):

http://www.xxxxxxxx.co.uk/catalog/checkout_process.php?osCsid=95c7327ac9f6b13944f8c5bc556bee6bX

 

However, I tried installing version 2.0 and whilst the payment is taken successfully, I am returned to this error page:

http://www.xxxxxxxxx.co.uk/catalog/checkout_payment.php?payment_error=sage_pay_form

 

In SagePay, the SuccessURL is logged as

http://www.xxxxxxxxxx.co.uk/catalog/checkout_process.phpA

 

Any ideas why the new version wont work for me? It seems weird it shows that "A" at the end of the URL.

 

Thanks

 

Floob