Forecast

Dear Professor Julliard, I am working in a version of Smets and Wouter (2003) model. And I trying make some exercises of forecast, I know that forecast isn`t yet implemented in dynare 4, but I look into the directory and I found the same m-files used in dynare 3 for forecast option. I would really appreciate if you can tell me how to use these file to make forecast with dynare 4.

Other question, is how really work the icforecast file?, and how can I use these option?.

Best regards

Wildo González