Hi!
I like your design with the blue and red letters.
But I don't like your logo it looks to childish in
#16 and # 13. in # 14 it goes in the right direction. Please also try black background and maybe like in the flickr logo the shadow effect.
Something between
#15 and
#14 should be perfect, but it should look more powerful and elegant.
please read also my comments on the contest!!! and see the link!
thanks, Hendrik