There's some weirdness on Windows 7. Put the cards.xml somewhere you have rights to (like your My Documents folder) and then in cockatrice go to Cockatrice->Settings and set the Path to card database to be where you saved the new cards.xml. Then restart Cockatrice for good measure and you should have the new stuff.
Updated the cards.xml on my site to pull images from the spoiler. Be forewarned, some of them are pretty funny looking.
So I have a Murkfiend Liege and a bunch of 1/1 green and blue creatures and creature tokens in play. My opponent plays Earthquake with X as 4 so it will take out all my creatures. If I play Cauldron Haze in response, will my 1/1 creatures come back and live? From reading another post I'm pretty sure my tokens will not make it, but how about my other creatures?
Updated the cards.xml on my site to pull images from the spoiler. Be forewarned, some of them are pretty funny looking.
Right-click, save as this url ->
http://brian.davis-mw.com/magic/cards.xml
Still having the same problem even after trying all these things. I've used spoilers in the past without issue.
Skeletal Changeling
Moonglove Changeling
Ghostly Changeling
Cairn Wanderer