I don't think there is any way, short of writing and implementing the
missing headers yourself. <iostream.h> is a non-standard header, and a
standard alternative has now existed for 7 years... A minimum
implementation might look like this:

//ostream.h
#include <ostream>
#include <ios.h>
using std::ostream;
using std::endl;
using std::flush;
//etc.

//iostream.h
#include <iostream>
#include <ostream.h> //to bring in the using declarations above
#include <istream.h>
using std::cin;
using std::cout;
using std::cerr;
using std::clog;
//etc for wide streams.

//do the same for other headers, making sure you include your .h
versions of headers they depend on.

Note though that there are lots of incompatibilities between Microsoft
legacy IOStreams and standard IOStreams, so your best bet is probably to
migrate the code - it should only take a couple of days?

Tom