Problem 1
Old livecd-tools from Fedora 8, for Linpus, seem to create a syslinux.cfg that isn't compatible with the version of grub (?) used on the FC14 live image.
Result was this message at boot -
syntax error in syslinux.cfg
Work-around - use Windows based liveusb-creator.
Problem 2
During boot of Fedora from live usb image, the message below appears -
no root device found.
booting has failed, sleeping forever.
The problem in my case was the volume name of the USB drive (FAT32). The label had a space character in it ('P1I CARD'), which the liveusb-creator mapped in syslinux.cfg as 'P1I_CARD'.
I was able to resolve this by renaming the volume to 'USBDISK', and replacing all instances of 'P1I_CARD' in syslinux.cfg.
Install to hard disk
Having booted the live usb image, I used gparted to reduce the size of the linpus partition, and free up space for Fedora.
Next was to install Fedora into the free space and boot into Fedora.
I then copied lines from the linpus grub.conf into the new fedora grub.conf, such that I could dual boot.
This went smoothly, and Fedora is performing exceptionally well... just wish I'd made the upgrade sooner.