Hi,
Outside of an MSDN or Technet subscription, no, it's not downloadable. Plus,
you'd have to use a DVD emulator to install.
Do you have a DVD drive on the system? It would be rare to find a system
nowadays that doesn't support booting from it. If available, try making it
the only boot device, not just the first one. You'll have to change it back
after the first install reboot, but it should force the system to boot from
the disk.
If you don't have a DVD drive, spend the $20 bucks and get one (internal,
not external).
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com