I am integarting a shopping car with SagePay and the process of 'direct' integration involves the submission of a POST form, which will then be responded to with succes or failure (and other vars), from SagePay.

I am told that I need to keep the form script running so that it can 'hear' the response from sagePay. Never done it before and have to complete it this evening so please if anyone can assist, I am prepared to pay.