Thanks for the suggestion, Clunk! I'm not very IT savvy so I've just had my daughter on the case! No! Can't be done.
I've played about with the scanner in manual mode and it always creates seperate files, allowing nothing else.
The seperate files can be dragged/opened in Acrobat8 but it's not quite the same as viewing it as one document. If uploaded I assume it will remain as 12 disparate pages/documents!
Thanks for the help. I suspect it's the scanner software- (Epson 2400/Twain) that's the root cause.
And yes, I know about Macs and Linux!! Cheers!