Just can't find it...

Litecoin-qt that I launch is located on the directory 'Home\Downloads\litecoin-0.8.6.1-linux\bin\64', and only other file in that directory is 'litecoind'. And even search can't find the wallet from anywhere in the system, but litecoin-qt *seems* to work just fine anyway and there's an wallet address in it. Except that it won't show any coins...
get to a shell and run the command
cd / | find . | grep -i wallet.dat
it'll search your entire filesystem for it