It automatically converted and referenced the values as url values through the update/insert/delete process. I don't recall if session values were converted or not, but every relevant link that was generated had the necessary values automatically included.
Speaking of ADDT, has anyone mentioned multiple edit/insert. That was a really nice feature as well. The ability to check multiple records and with one edit button automatically generate a single page with a form for each record being edited as well as the ability to insert one or more records at a time based on a drop-down selection.