1) What I would like to do is copy all of the 160 pages from Dreamweaver into WordPress. Is there a quick way of doing this or will I have to copy and paste every single page?
That's not how WP works, so the answer would have to be NO, there is no quick, or easy way to do this. The menu would have to be defined in WP, and then each page's content would have to be added to separate WP-managed pages and/or widgets via the WP admin section.
2) As an experiment, I copied 10 page individually from Dreamweaver to WordPress to see how they looked.
You mean you just uploaded the pages to the WP host? What exactly did you do? Can you post a link to one of your test pages so we can SEE what you have done, please?
This means when I copy and paste each page from Dreamweaver to Wordpress, all of the links are dead as WordPress does not recognise the relative links. Therefore, I need to manually change ever relative link to an absolute link. Is there a quick way of doing this within Dreamweaver?
First off you would not need absolute links at all. But the answer to this question would really depend on what, exactly you have done in WP, and we'll find that out by a link to your page.
Thanks for the reply MurrySummers,
I am unable to upload a test page at this precise moment but will do soon. Also, just on how I uploaded the pages, I literally copied and pasted the text and the images from a page in dreamweaver to WP - I have not uploaded any files due to conflicting HTML theme designs.
See - I still don't understand what this means (or what you think it means) -
I literally copied and pasted the text and the images from a page in dreamweaver to WP
Do you mean you logged in to the Wordpress Administrative section, and created a new page there into which you pasted your content, and in which you uploaded an image into the media library?