hm there seems to be a strange behaviour though.
I just followed one of your card links (the Lorena one) and landed with card 552 instead of 622
After that i modified the link
http://www73.virtuagirlhd.com/us/index_set.php?setId=700and ended up with card 617. So somehow the number don't match here.
This link would lead to the right card.
http://www73.virtuagirlhd.com/us/index_set.php?setId=721Looks like a very strange system to me and it also looks like you have to use trial and error to get the right number.
Edit: Just checked from Junungers site. He has Denisa K linked and the card has number 159 but he uses number 88 which indeed leads to the right card. Maybe he knows if there is another way to find the right numbers than trial and error.