I don't know if this thread is still active...
and I have NOT loaded this mod because reading the thread I get the impression it is keyed to a product being viewed.
I would like to suggest an alternative approach which I would like to see... am considering writing a module, but don't want reinvent any wheels.
I would like to see an option in the menu block of the Virtue Mart module, say "Product Enquiry"
This would then present a page with some (configurable) intro text and a nicely laid out grid of chckboxes so that Visitor can select the products of interest and send the appropriate User & Admin emails.
The array of checkboxes could also be configured - e.g Only Categories or fully exploded category/products each with it's own checkbox.
The page would also need a form for Visitor details - ie. not necessarily registered and all details of the enquiry should be stored and available to be viewed by Admin from back-end.
Just an idea - If anyone is interested, by way of simple example, I have (long ago) done a similar page here (it's an older ASP site). Because it uses Frames, to see the page click "Product Enquiry" from the left menu.... http://www.buttbin.com
I would be interested to hear whether such a page is on the agenda at all... if not I may start work.