better bet; build the new server with the latest vicidial
test it to be sure it's capable of autodial (put in one campaign/list/lead/phone/carrier and test it in autodial mode) to be sure it's a Working Vicidial.
back up the db in that latest vicidial (as a stopping point, since it worked).
back up the DB in the old server and copy it to the new server and insert it in place of the freshly installed db
upgrade the old DB
run the ip update script and reboot.
you'll have a fresh system with no risk to the old one, but with ALL your data in it still intact.
we've had clients do this in VMware and then (knowing it will work) install a fresh copy of Vicidial in the live server and push the VMware database back onto the server already updated and ready to go. the VMware version is only good for one call, but it's excellent for seeing that all your data is there and the system still works properly. one agent can go through all the steps well enough to convince management it will work.
or just pay someone to upgrade your system. that works, too. we've also had a few clients who had us upgrade it from their server into one of ours, and used it here for a month while upgrading the local machine. NO danger at all to the old machine because it's not touched until the new one has been online full speed for an entire work-week.