Have You tried reaching any other staff?
You never know, he might be hospitalized or something.
It can be difficult replying on ICQ then I mean..
Or is there upcoming drama for more reasons..?
If so, just spill it if it's bad enough
Don't take things to the boards too quickly.
(I'm definitely not defending him for any other reason than correct & respectful problem-solving, him running a program like that 'n all..).