CG, It works after a fashion, but there's something a bit disconcerting about it.
I ran 57 on a working 56 installation, selecting "start over" and it uninstalled 56 and gave me the selection screen. I pointed it at the correct drives and it began to process then suddenly rebooted, bringing me straight into Vista (my old Easy menu has timeout(0))
When I looked at menu.lst it was completely blank.
I ran 57 again, and this time I did "uninstall" and let it complete then "exit"
I ran it again and this time it auto-rebooted again later on in the processing, presenting me with the new white menu.
Selecting Vista failed trying to unhide (0,0), so I went into edit mode and deleted the unhides (I haven't run XP for a while so nothing's hidden anyway) and the boot completed into Vista.
In Vista I looked at menu.lst and it seemed perfect, so I thought the Vista.x.HnS files might be missing, but they were all present and correct, so I rebooted the machine and this time it came up with the menu and booted into Vista with no problem, except of course the descriptions are all your defaults because it never got as far as allowing me to do the final customizing steps.
Any clue why it's throwing random reboots into the mix ?