Edit ContactSheet_ID.jsx to include default template

We're using Bridge CS3 to generate contact sheets with InDesign CS3 using Bridge CS3's Tools > InDesign > Create InDesign Contact Sheet command. We've defined an InDesign template which we're using for these contacts sheets but find it annoying to have to browse for the template each time. Saving your settings with a Preset doesn't record your template selection so there's no joy there either.

Not being at all savvy with Javascript, does anyone know how to edit ContactSheet_ID.jsx so that a default template is already input when the Create InDesign Contact Sheet command is invoked? Or perhaps to change the behavior of saving Presets so as to include this default template information? We'd want to locate the file at a universally locatable path such as a user's documents folder or the InDesign folder or on a server, etc. so that all users could easily use the command with expected results. The solution would ideally be for the Mac but any would be great too!

Thanks!