* SOLVED *
I'm using VirtueMart 3.0.11.4. What I'm trying to achieve is quite simple, just getting the quantity variable from the cart to the form where users fill their billing/account details (editaddresscartBT).
(So I could later add array for each single quantity).
http://forum.virtuemart.net/index.php?topic=79799.0 (http://forum.virtuemart.net/index.php?topic=79799.0)
Sorry AH and thanks for directing my attention to that. I'll remember it.