Mark is correct and you need to verify and correct the loss detected using the queries above. I would also recommend upgrading your RS it is pretty old. In newer versions of RS when you run admin who,sqm it will show in the output any loss detected.
Based on this information I am not sure how you can say that everything replicated to the target? This condition indicates that the primary RS still has a lot of data waiting to send to the target RS and you need to make sure you are in synch between your primary and replicate databases.
