You could try Recuva. A little program which can restore deleted files. There is a little chance. To increase the probability of success dont use your harddrive where you stored the wallet. Otherwise the area on the hd may be overwritten. wish you good luck.
Oh my god thank you so much, maybe there is a chance.. I found a Wallet.dat file. I'm not sure if it is the right one. But now the next problem.. I also deleted the Wallet. The Kittehcoin website doesn't offer a wallet-download anymore.
What can I now do with the Wallet.dat file? And how do I know it is the right file of my address?
Thnx!