The galleries were all working perfect when i browsed them in Dreamweaver
so do instead of taking the folders out of the galleries folder i need to just put the whole galleries folder in to upload?
If everything works OK locally on your own computer, then there is no reason why it should not work when uploaded to your web server if you mirror the structure exactly (ie. do not rename or move any files).
does the 'galleries' folder need to be all lowercase
No. However, if the gallery's name is lowercase, then you must refer to the gallery folder using lowercase in the URL when it is uploaded to your web server.
also i forgot to mention my index page is called 'home.html' will this mean that Simpleviewer won't recognise the index page?
The page loaded into your <iframe> should be the gallery's HTML index page (no matter what it is called).
At the moment, your code is as follows:
<iframe src="Galleries/summative project/index.html" height="500" width="700" frameborder="0"></iframe>
... and the file http://www.swansnestdesign.co.uk/Galleries/summative project/index.html does not exist on your web server.
It looks like your gallery folder is named 'summative project' and that your gallery's HTML index page is named 'index.html'.
If this is correct, then you should upload your gallery folder ('summative project') to the 'Galleries' directory on your web server.
SimpleViewer Support Team.