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.

70ceb83749... Block 164055 (2012-01-27 09:41:52) 13.45 Received: Address 13.45
a5ce74eaac... Block 164335 (2012-01-29 07:01:48) 13.45 Sent: Address 0