xchan directory dumper

so hey, does anon know where can i download the directory dumper?

Allright, I haven't been able to post one single image with the xchan directory dumper.
I'm using version 3.1 and I used the following data:

Board: Other (Using "4chan /b/" is not working for me, either).
URL: sys.4chan.org/b/post
Board type: 4chan

Added some files...
Default message: I left this blank.
Thread number: the number of a thread I created 1 minute ago. Just the plain number.

Other options: all blank, except Post Delay: 35.

What turns me crazy, is that the program says the upload went ok, but it didn't! In fact, I can even upload manually that same image in the board, and I DON'T receive the expected "duplicated image" message.

Any help?