Due to the number of changes there are in IE 7, MeadCo ScriptX users will need to upgrade ScriptX when upgrading to IE 7.
The latest builds (release candidate) for ScriptX are available from the ScriptX Beta page. The good news is that the upgrade is not only needed but is worthwhile - ScriptX 6.3 provides the latest IE 7 print functionality such as automatic scale to fit and preview dragging of margins etc.
Even better it provides this new functionality to IE 5.5/IE 6 users as well. So, if your users may be running anything from IE 5.5 onwards, you can give them all a consistent print experience.