Thank you for the reply.
So I reinstalled the client and after it synced it still comes up empty, showing no transactions, even though I can see the transactions on blockexplorer.com.
When you say your wallet "is a different address", ... but a wallet has many addresses, probably means you have an empty wallet with only one address.
That you have a client that has synced but shows no transactions kind of confirms that.
I do not have a backup
That is unfortunate. You never made any backups of your wallet anywhere?