Hi,
Sent coins to old wallet & fortunately I managed to recover my reddcoins.
How I did it:
open social wallet (1.4.0)
Settings - export private key (type the public key and export the private key)
open the reddcoin core wallet (2.0.0)
Help - Debug Window - Console
type importprivkey "reddcoinprivkey" (Use the previous privatekey) and Enter
Public key (receiving address) should be in your core wallet by now
Sync with network properly and you will get your coins back.