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.

71d140bf21... Block 136243 (2011-07-14 13:22:40) 49.322 Received: Address 49.322
c51e8df50b... Block 136243 (2011-07-14 13:22:40) 49.322 Sent: Address 0