ATF: still without a director
The current acting director had to step down because there's a limit on how long a person can be "acting" without Senate confirmation. (I think a person can only be "acting" for 120 days in such a post -- this keeps a president from calling someone an acting director or acting secretary and giving them full power without getting Senate confirmation).
UPDATE: When I wrote 120 days, I was going by memory. The system was extensively amended in 1998; it's now more complicated than a simple 120 day clock.