b2unit

yes I did.. and now I checked directory info again.
uploads, 2006, 03 directories are setted at 777.

I found more things about ownership for each directory.
*upload directory( I did set this directory at 777 by myself): owner and group is my id.
*03 directory(I did set this directory at 777 by myself): owner and group is my id.
*2006 directory(WP created this directory): owner and group is apache.

so I assume I have to make month directory per every month..
please let me know how can I escape from this situation…help me..