Do not use an open flame to thaw a frozen pipe. This is not only a fire hazard, it could also cause a steam explosion. Use a hair dryer or heat lamp to thaw a frozen pipe, and open a nearby faucet to release vapor from melting ice.
When pipes are frozen, there is often water available at one faucet but not another. If there is no water at all, the problem may be in the street. Call the Department of Public Utilities maintenance department at 518-237-0241.