Now here’s a thought. Has Wiki Server on OSX Server basically got all it takes to do away with Fronter (our wonderful pan-London VLE via LGfL)? I think it just might…
- It can do pages that are easy to edit
- You could put a message board on as a blog?
- You can do calendaring
- It has the huge advantage that you don’t need to log in when in school to use it
Certainly worth some consideration anyway.
Primary ICT 
Did you ever get any answers to this question? Am thinking about wiki server as a vle myself.
I think now that a VLE needs to offer much more than an editable/collaborative web page so I’m not sure a wiki can do that. We’re very actively looking for a Fronter replacement though!