Thanks.
It is asking me to verify that the URL prefix maps to the root of the site.
I think the problem is I have installed the files in the wrong place. My whole site is in the htdocs folder - is that right? I thought I needed a 'local' site separate from the testing server which would be in the htdocs folder?
I think what would really help a lot is instructions that relate to DW CS5. Then I could verify all the information has gone into the right places.
Thanks again - any help gratefully received.
Helen