InfoPath Dev

I have form with rules from the trial version of 4.1. I just got the trial version of 4.2 (while i wait for my procurement dept to process my PO) and i'd like to update my form to 4.2 but i'm not sure what to do. the 4.2 download package contains a Quick Start file but it is from 4.1 and it just describes how to install but not how to upgrade. Could someone please point me in the right direction.

TIA
Dean

Upgrading a form to a higher qRules version is as simple as running it throught the injector for the new version.  Please make sure to back-up your form before you do so, just in case.