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One cannot install Windows Vista into FAT32 partitions. Microsoft has done away with FAT32 from now on. There was a plan of bringing a new File System ...
http://www.vistahunt.com/install-and...ows-vista.html - 37k - Cached - Similar pages

Can I install Windows Vista on a FAT32 partition? No, the installation partition need to be formated with NTFS. Back to previous page ...
www.ntcompatible.com/faq-90.html - 18k - Cached - Similar pages

You cannot install Windows Vista on a FAT32 partition. Additionally, you must correctly configure dynamic disks for use with Windows Vista. ...
support.microsoft.com/kb/927520 - Apr 17, 2007 - Similar pages

You cannot select the Upgrade option when you try to install ...Convert the hard disk partition from FAT32 to NTFS. Windows Vista requires that the hard disk partition (disk volume) you are installing Vista into is ...
support.microsoft.com/kb/926069 - Similar pages

Several articles with info on Vista and FAT32