Sorry Kado897 - I thought I had but clearly not, so I will attempt to try and explain what I did.
I opened each file independently, selected all photos by right clicking and holding down the shift key, Clicked on delete, then opened the correct folder I wanted the photos in and pasted.
When I went back to folders to do the same to the other folder - the first folder which I had just done was now no longer visible and all the photos from it were saved in correct folder. I hope this makes sense, but it worked for me.
Sorry for my stupid mistake and thanks again.