Creatures Caves

I installed C12DS but I only wanted some of the breeds from it, some of them are in the same slots as other breeds I want.. and now I don't know how to get rid of the C1 breeds.

I got the breed-uninstaller from here but it doesn't work, it says it deleted the files but they're still there, my norns still have the C1 sprites. (I seem to remember it worked on one of my old computers a long time ago, maybe it's something to do with Windows 7's security stuff and not letting programs change/delete anything in Program Files unless you run them as administrator, but there's no option to run the breed uninstaller as admin)

And most of the other breeds I want just come as egg agents, so they don't come with a folder of sprites that I can just copy to replace the other ones... It doesn't work to just lay more eggs of those breeds either, even if it says "Unpacking images", they still keep the C1 sprites.

So, any other way to delete/replace breed sprites without manually trying to find and delete zillions of files from the Images folder?

Edit: Argh, i did try manually deleting all the sprites in geat slot K, Banana/Nenya norns, and it made my old worlds with Nenya norns crash, so I made a new world and hatched some Nenyas and.. they still look like Banana norns. Nooooooooo