David/Richie,
Some sample scripts are available from
techsupport@rossvideo.com. Please let us know what type of functionality you are trying to achieve.
All of the scripting methods and dimensions available to XPression can be found in the XPression SDK help file. This is found under 'Start > All Programs > XPression Studio/Designer > Help > XPression SDK Help.
Please keep in mind that tech support can supply you with sample scripts and documentation, but can only supply minimal support for re-writing or creating scripts.
#XPression