Installing Spore didn't delete my creations, though I thought it did when I first fired up creator after installing and found "My Creations" empty. I went back to check the old png files to see whether they were still there, and sure enough they were. But since there weren't read by the game there, I switched to Windowed mode, and dragged each png into the creator, changed a little and it would save.

If you can't find the pngs, they save to My Documents/My Spore Creations/Creatures if I recall correctly.

Hmmm strange, I did not lose my creatures when I installed the game......

But Maxis is going to make it here soon where you can have multiple user accounts against one game. That way your little one will have her own log in and can make creatures until her heart's content and it won't show up on your older daughter's account.

Edit..YAY yxish to the rescue!

yea i lost a big chunk of my creatures and is it me or is the new creature creator's abilities block the view