You might want to try and write to WoTC and ask them for replacements on the ones you need. After all its not like you are asking for the mini, just the stat card.
This worked for me when I bought a pre-packaged set of football cards and the Bary Sanders rookie card was missing. They sent me a letter saying they were sorry and the card. The worst they can say is no.
Try downloading a program called Warmonger. Type it in google, it has all the mini's I believe, and shows the stat cards and what they look like, you just need some index cards to write the stats on.
Me, too. I don't have many, but I would be willing to send what I have. You can mail me at eris404 at yahoo dot com if you're still looking and let me know which ones you need.
Cool that there are so many helpful people but beware oh benevolent ones:
One day you may want do play the skirmish game and then...
(the opposite happened to me, I gave a way some minis I didn´t want but not the cards. Later I began to play the game and am now crying for my lost Wolf and Hyena ).