You haven’t lost any coins. However it is mandatory that you update your QT Wallet to get back on the correct fork. Here are instructions on how to do so:
If you have any questions on getting through the process, let us know. Thank you.
Okay, your funds are safe as long as you still have your original wallet.dat file. If your coins haven’t showed up after updating, you might just need to do a rescan for the wallet to show the inputs.
Here are directions on how to rescan:
If this doesn’t work, let me know and we’ll go from there.