Field Order Stamping in QuickTime

I am using QuickTime SDK 7, we are using it for rendering movies... We have fielding options to render movie to fielded(Upper fielding or Even fielding)...
Our movie is fielded, the movie output is correct. But after loading the movie to after effects and checking the info it shows NoField always... Even you don render the movie with any fielding it shows NoField... I think it is some Stamping Issue(I could not able to find any functions to set the field order to Quickime)...
It would be great if someone understand my problem and helps me ....


Thanks
Noorul