So an update... I tried changing the two files in the link you gave.
Reinstalled VMWare tools... I DO now have access to shared folders in /mnt/hgfs... THANK YOU!
However, drag and drop still doesn't appear to be working. In options>guest isolation I have "enable drag and drop" and "enable copy and paste" selected.
Is that the only setting I need for drag and drop to work?
Many Thanks