I wasn't heard that Plato complanied about the youth of his time
saying pretty much people say today, that is, aren't like the last
generations and are disrestful yadyad yad.  I'd like to get the exact
quote. Can anyone help?

Children nowadays are tyrants. They contradict their parents, gobble
their food and tyrannise their teachers. -- Socrates

from brainyquote.com

Plato about youth and the excess of freedom

Several people have asked me the exact reference of a quotation often
ascribed to Socrates and circulating in educational institutions under
a more or less loose form, on the evils of children no longer
respecting their parents and teachers and of the excess of freedom.

The quotation is not from Socrates, who wrote nothing, but is put in
the mouth of Socrates by Plato in a dialogue called The Republic.

From http://plato-dialogues.org/faq/faq003.htm - different quote, but
critical of children in society

The answer to this earlier question may be of interest to you:

http://www.answers.google.com/answers/threadview?id=398104