Not the rpc-ace type, it's a really light explorer and I only set it up to work as a backup. I'll get to work on an Insight type block explorer soon.
Actually you can enter both hash or block number in the URL of RPC Ace explorer and it take you right to the block.
It doesn't accept addresses though. I'm working on the Insight type, it should be up soon.
Yeah it does not keep a database so not possible to backtrack an address but the author has said he has a database version he maybe releases soon. It would probably have ability to check an address's history.