Adding one page before proceeding with PP EC

I am supplying "Practitioner Only" supplements and need the customers' prescribing practioner details (name, address etc) to comply with current Australian regulations before an order for this class of products can be filled.

The requirements are outlined in the "Conditions of Use" which need to be confirmed as read before the customer can buy. This works well when the customer chooses the 'long way' to checkout.

If, however, the customer clicks the PP EC button they bypass this confirmation requirement, pay for their goods and I am left with asking them manually for their practitioner details.

Question:

Is there a way to add one single page between the shopping cart page eg

http://frnt.org/zencart/index.php?main_page=shopping_cart&sort=20a

and the actual PP EC initiation - a page where they need to enter their prescribing practitioner details?? I know this makes it less "Express" but I need to be on the safe side of the law.

This could be just a simple text box plus a check box confirming they have read the "Conditions of Use".

Have searched the forum but did not find a suitable clue for this.

Any suggestions?

Frank

frnt.org/zencart