What happened to early entries in this contest? Answered

I am just wondering what happened to the early entries in this contest? There are quite a few of them missing. I sent an e-mail to info@instructables.com about a week ago and received no reply. I had an entry, "Embed an OEM GPS Into Anything" and received no communication that is was disqualified, removed...etc. Just one day it was not in the contest anymore. Can anyone tell me what happened? Have any of the other authors already posted questions about this and I am missing them? Thank you all for sharing your knowledge and making this a great site! - Charles