Thank you that worked just fine as did the same solution when I got a similar response from DetailSKU.
I have now successfully conducted a sale right through to paying through PayPal - one problem!! I have set up eCart to work in sterling but the transaction went to PayPal as an amount in USD. The amount was £2.30 but got processed as $2.30. Is this a PayPal problem or do you think I have done something screwy in my eCart set up?
Thanking you in advance for you help and support.