Regarding IDeal, I entered all the data for the Rabo bank IDeal installation and put it to live. It's still however referring to the ideal test site. On the test website it gives an error saying that an incorrect MerchantID was used. If I can be of any help with the translation of the IDeal protocols just contact me.
Furthermore there are some pieces of text that I translated in the .po file that are still in English instead of Dutch. For instance the line "If you have any questions about your order please do not hesitate to contact us." on the order status page. And also the line "Please enter your shipping information in the form below to proceed with your order." on the shipping information page.