Thanks all,
DialCoin don't seem to exist anymore - I cannot find where/how to contact them today....
I did have a print out of the codes but remember tossing it away as I didn't;t think it was going anywhere at the time. Hindsight is a wonderful thing.
I'll keep searching for the Wallet.Dat file - I found two old HD's one with a PC (I'm now on MAC) backup from 2011- bit its date was April and I was mining/buying in Nov... sheesh...
ANY tips appreciated.
David.