OK. think I am almost there and am just passing variables to be used on relevant pages.
Just got an insert page that I have with either 'add & return' to the results or 'add another image' and when I 'add another' image, I am setting the url to include ?ID=gallery_1&ProductContentsID=1 but on the add & return its only setting it to ?ID=gallery_1 and I need the 2nd variable to get this to work.
have attached the insert page
cheers