Listing balance and transaction info of other addresses

I'm trying to retrieve info about transactions and balances of addresses on the network.

Code:

./bitcoind listtransactions '*'

Code:

./bitcoind getbalance '1127YKBDm8d2ZEvFwGz3e6NaWUr4LNQSBE'

(see http://blockexplorer.com/address/1127YKBDm8d2ZEvFwGz3e6NaWUr4LNQSBE)

But both commands above return empty. How can I get a list of transactions, say, of the last ten minutes? How can I get the balance of a specific address using its public key? Are these operations possible with bitcoin client? How do blockchain and others do it?