[ImageMagick]Can not configure

Hi. I've got some problems on configure imagemagick plugin. I really can not figure out why. When I run check the path that contain the imagemagick and then it say there is no such files identify, identify, convert, composite although i had it all.
See the picture below for the debug output:
[img]http://i292.photobucket.com/albums/mm5/JoyenceLM/error.png[/img]
Looked at the debug output i thought that i didn't have the gm.exe file in the folder. But i can't find where is it.
I got the files identify, convert, composite by compile the imagemagick source code that gave on the official website. The version of imagemagick i uses is 6.4.1.
Somebody help me. Really need help. Thank you.