Many thanks for the help people.
Ended up following this
The process given in the guide worked perfectly first time.
What gave me cause for worry was that the guide talks about, and gives links for, the LS-WVL.
As far as I know, that's different to the LS-VL. VOLLEMELK did give a link to an ftp folder to go to to get other versions from, but no matter how I tried to get there the connection was refused.
In the end I thought, 'Sod it - give it a go'
I am now one happy, file restoring bunny
P.S. - Only had to use TFTP once...