Are you sure of this partition table (hopefully this is a typo);
/dev/sda3 vfat
/dev/sda3 reiserfs (I want to install here)
If true then something is wrong!!
Since this is still a release candidate you should check the FC development lists for for possible help and workarounds. It may be a good idea report the problem there also.
http://www.redhat.com/mailman/listin...ora-devel-list