Let's imagine I've made a simple form using the Web Forms for Marketers module 2.2 (for CMS 6.4), and have set this up to use a 'success page' (server side redirect to a specified sitecore item). This works great.
Now it turns out that the thank you page needs to show certain field variables from the form which was just submitted.
"Dear x, thank you for your interest in Y".
On the success page, it seems like there is no way to retrieve the information (server-side) I need to show this information.
What would be a good way to approach this problem? Is there a way to hook into sitecore webforms before the page is redirected to the success page (so I can pass along an orderId, for example)?