Go to Tools --> Reset Blockchain and Transactions.
See if it has the option to reset since the genesis block checked and apply.
Wait a couple minutes till it syncs and you'll see your coin.
I reset from First Date, it now says "Synchronised with Network" but the wallet is still at 0.
However the wallet has a different address than the one I had on blockchain.
So does this mean my btc is gone?
No. Reset again but use a date that is before the date you created the wallet at Blockchain.info.
Choose a date on the calendar a few years back, like March 13 2009, to when Blockchain.info didn't existed yet.
Ok - it's now loading. Thanks I will update