They are a bit too militaristic in their posting qualifications, and they are very erratic about it too. They don't like cropped photos either. I use the sister site,
http://myaviation.net There you can post freely and not have to deal with inconsistent screeners.
I have almost 300 pictures up on the myaviation.net site. I am awaiting them to post some I uploaded last night. My portfolio is here:
http://myaviation.net/?uid=9739