Mandrake 9.0 & GCC 3.2

[allstargrogg@wbcom.com]

I just updated to mandrake 9.0 which included a new version of GCC (3.2) as
well as a new version of the libstdc++ (5.0) and it is causing problems.  I
can't compile c++ programs that I used to be able to.  It gives me a
warning of deprecated header files and tells me to start including them as
<X> instead of <X.h>.  When I try this it then tells me I have to declare
cout and cin and endl (I was using iostream.h in this specific program)
which made absolutely no sense to me.  Also, it did not recognize the void
declaration for my main procedure.  Is this really the new standard library
being implemented, or is this just some fluke that is not correct?  Please
help.
John Grogg