Just on the purely stance of preservation, I'm wondering if original Vista images are still around... all I can find (and what I already have anyway) is a WinBeta all-in-one image that has been modified and doesn't work too well anyhow. It would be preferable if anyone still has the original images, if you might provide PAR2s of them so I might reconstruct it from the WinBeta release (should be possible). If it requires more effort than that, then you can just forget about it, eh. More information like the original filename and timestamp would also be nice, but not required.
Just look round ***the usual** sites There are also reports of hacked MSDNAA servers where you can find the original images. Google is your friend