Shipping always calculated as £1

[rubina...@hotmail.com]

Yesterday I installed google checkout and the problem I am having is
that the shipping is always calculated as £1. Shipping should be
calculated depending on weight but no matter whatthe weight is the
shipping is always calculated as £1. I am using oscommerce and
royalmail contribution.

Can anyone please help.

Can't we just use the current table method with google checkout?

Thanks