I am in the process of migrating a ProStore customer to Zen Cart with aprox. 300 products. One of the issues that were raised recently concerns the handling of search engine referals and how to handle redirects to the new site.

Can anyone give me some insight how to best handle this? Is there a plugin that will allow suggestions to be passed to the customer based on the URL being requested rather than generating a 404 error?

Thank you for your thoughts and input in advance.