Balance will appear once you have downloaded enough blocks.
It says 26000 blocks, looking at blockexplorer
you will see that this block appeared on 27. October 2009. This means that you will only be able to see payments in this block and previous. Since you made payments in 2011 you have to wait until you have downloaded enough blocks (a little less than 104000 blocks
) to reach the date of your payment. Once blocks has been downloaded it will automatically appear in your balance.
You can speed up block downloads by opening port 8333.