vista b2 install fails completing upgrade

Hi - as title, burnt ISO to a DVD in Nero no problems, stuck it in the test machine running XP Home, asked for an upgrade. Off it goes, slowly. Well, it has done all that it needs to, but for what seems to be the very last bit - and it throws up a message "Windows setup cannot continue due to internal error - now returning to earlier desktop"......disappointing. I'm about to try a clean install, presuming I can get some stuff off the machine I wanted (no, I didn't back the bloody thing up first - lol) - but no loss if I can't. Any ideas why it would throw this message up?????
Cheers guys.

Do a clean installation then :o) Alternative install methods can be found here - option 4 :o) http://www.vistabase.co.uk/welcome.php?getstarted
-- Zack Whittaker » ZackNET Enterprises: www.zacknet.co.uk » MSBlog on ResDev: www.msblog.org » Vista Knowledge Base: www.vistabase.co.uk » This mailing is provided "as is" with no warranties, and confers no rights. All opinions expressed are those of myself unless stated so, and not of my employer, best friend, Ghandi, my mother or my cat. Glad we cleared that up!
--: Original message follows :-- "MS slave" <MS slave@discussions.microsoft.com> wrote in message

Hi - as title, burnt ISO to a DVD in Nero no problems, stuck it in the test machine running XP Home, asked for an upgrade. Off it goes, slowly. Well, it has done all that it needs to, but for what seems to be the very last bit - and it throws up a message "Windows setup cannot continue due to internal error - now returning to earlier desktop"......disappointing. I'm about to try a clean install, presuming I can get some stuff off the machine I wanted (no, I didn't back the bloody thing up first - lol) - but no loss if I can't. Any ideas why it would throw this message up?????
Cheers guys.