Another interesting enhancing modification for VirtueMart has been recently developed and released on the forum: the Invoice/Receipt/DeliveryNote Addon.
The author, Ingemar (aka Mr_Smurf), writes about it: "It acts as a plugin for order.order_print (The order details page for the administrator) and adds a new tab where you can create invoices, receipts and delivery notes in pdf."
Grab your copy from the forum topic if you like. It can't be installed as a plugin or component, but you will need to upload and modify some files and change the database structure by hand.
Because it's so useful, this addon is expected to be added into the official VirtueMart distribution and will be available with the next minor release (VirtueMart 1.1).
Thanks to Ingemar in this special case and all the other contributors of "mods/tweaks/hacks" for VirtueMart!