Thanks for all the replies. I'm thinking along the lines that the update didn't install correctly. According to iRex's records I have 'successfully' downloaded the update.
I'm sure my line endings are correct as I'm a linux man.
I will try the update again from home tonight.
If anyone has any further thoughts / suggestions or even a 'working' test script to create a directory in the contentlister or even a text file. It'd be much appreciated!
Thanks all.