Show breadcrumbs when Passing GUID

Question

Hi, I'm working with ASP MVC 2 RC2 and using the standard sitemap provider.

I'd like to show breadcrumbs on a page which passes a guid in the url e.g.

/validate/GUID

but i'd like the system to ignore the GUID and just show the (Home > Validated) for the page, as I don't want to dynamically re-create the sitemap each time I create a new GUID.

Does anyone know if this is possible or whether there is another breadcrumb system that will achieve this.

Thanks in advance.