Hi Box,
Thanks ever so much for your reply... I've downloaded the Sketchucation Plugin store as you suggested and it has installed correctly (I saved the rbz onto my desktop). Unfortunately although the VoronoiXY plugin is shown as 'installed' under Sketchucation Plugin Manager, I can't seem to see the tool anywhere on Sketchup, when sketchup opens I get the following error message:
Error Loading File VoronoiXY.rb
no such file to load -- delauney3.rb
In fact, the top bar of the Sketchucation Plugin Manager tells me the file path for the plugins folder but when I follow that on my computer there is no such path! - I have even created a new directory to emulate that path and see if that works but no luck?