Note: While the last "balance" is the accurate number of bitcoins available to this address, it is likely not the balance available to this person. Every time a transaction is sent, some bitcoins are usually sent back to yourself at a new address (not included in the Bitcoin UI), which makes the balance of a single address misleading. See the wiki for more info on transactions.

65e6df153b... Block 130961 (2011-06-15 08:05:22) 1000 Received: Address 1000
0c45ac36d4... Block 146364 (2011-09-22 02:11:42) 1000 Sent: Address 0