As much as I hate to admit having this crapfest of a program, I DO have it on my computer and yes, it will convert .vsd files to AutoCad .dwg or .dxf format.
Andrea, if you want, just send me the file, I'll convert it and send it back. Just don't ask me to proof read it if it's in French. I was born there but can't read or speak any of it.