Is it possible to put three separate slideshows on the same page? If so, how to I link to the separate shows? At present I have three separate galleries with a slide show link in each one but when I click for a slideshow on the different galleries they all start at slide no.1 from the first gallery.
Any help will be appreciated.

Sure. The rel attribute on the slideshow link tells it what gallery to load. Let's say your 3 galleries are grouped with rel attributes of floatbox.1, floatbox.2 and floatbox.3. A slideshow link with rel="floatbox.1" on it will use the first gallery, rel="floatbox.2" will use the second, etc.

Many thanks once again