Ok, I tried the move. Started to go well, and came back to the computer and saw this:
On the restart, the move was not completed, I still get the 'wubi boot selector' and my new install does not appear in the list. In a quick look at my file system, compared to the working wubi version, there are some folders empy, sys for example, and some that do not contain the same number of files as the working system, so I am assuming this stopped for some reason.
amy@ubuntu:~/Downloads$ sudo bash wubi-move-2.1.sh /dev/sda5 /dev/sda6
wubi-move-2.1.sh: Would you like the grub2 bootloader to be installed
wubi-move-2.1.sh: to drive /dev/sda? If you choose not to, you will
wubi-move-2.1.sh: still be able to boot your migrated install from
wubi-move-2.1.sh: your current install.
wubi-move-2.1.sh: Install grub bootloader to /dev/sda? (Y/N)
wubi-move-2.1.sh: Please close all open files before continuing.
wubi-move-2.1.sh: About to format the target partition (/dev/sda5).
wubi-move-2.1.sh: Proceed with format (Y/N)
wubi-move-2.1.sh: Formatting /dev/sda5 with ext4 file system
wubi-move-2.1.sh: Copying files - please be patient - this takes some time
file has vanished: "/home/amy/.local/share/gvfs-metadata/uuid-94626600-ec2d-4154-a9ce-9f1b0d594187-8d6a8153.log"
rsync warning: some files vanished before they could be transferred (code 24) at main.c(1070) [sender=3.0.8]
wubi-move-2.1.sh: Copying files failed - user canceled?
wubi-move-2.1.sh: Unmounting target...
wubi-move-2.1.sh: Migration request canceled
Is there a fix for me?