Show form/page with parameters from code

Hi,
I created some captureForm widget (based on sample) which can take events from 'child' drag&dropped form. In method SubmitClick I can recieve some info about selected checkboxe's values and so on but I would like to do some stuff:
-go to sitefinity and create some simple page (named "error page") with one widget like content block
-From code - SubmitClick I want to take some my custom text message and show this error page with string parameter, so when it shows up - in content block widget will be these messages (taken from parameter).

Some advice?
Thanks from mountain ;)