automatic printing of different foreground scale labels

[RJPerkins]

I am using Visio2003 to produce a set of drawings with different scales. I want to have the same Title Block on each page so I have created a Title Block on a Background Page. The scaling for the Background page is 1:1, whereas the foreground pages have different scales ranging from 1:10 to 1:200. I have included a 'Scale' block in the title block, hoping that the Scale Field would automatically produce the scale of the linked Foreground page. But in fact, it always returns the scale of the Background page (1:1). I would guess that there should be a way of doing what I want to do, because there are other variables that do change as the Foreground page changes (e.g. the Drawing Number and the Page Title).
I have tried delving around in the shapesheets for these different blocks, and it is clear that they don't use the same approach. The scale text is computed from two variables - ThePage!DrawingScale and ThePage!PageScale - whereas the drawing number and the page name are obtained from two variables: PAGENUMVER() and PAGENAME().
Does anyone know how to do this?

Thanks

Richard Perkins