Ok so first ran the vbs script manually & my taskbar properties menu opened (the menu that opens when I right-click the taskbar). I ticked 'show quick launch' & restarted - no change.
I then moved the .vbs file to the Windows directory & ran gpedit > Windows settings > Scripts > Startup Scripts > add > set the 'script name' as myvbsname & in the 'Script parameters' I entered the location parameters for the .vbs file (the reason I tell you all this is because there is a 'browse' next to 'script name' which suggests that parameters should be entered there instead of myvbsname?).
I then restarted & nothing changed, except that when I tried to manually run the script from the Windows directory, my taskbar dissapeared (hide taskbar) instead of opening the properties window.
Lastly, I tried browsing for the script name, putting the path to the file in the 'script name' box with nothing in the 'script parameters' box & restarting. This time (rather stangely) upon Windows startup, I got a log off box over the top of my Windows log on screen (& no quick launch in Windows).