okay tried browsing to :

http://localhost/index.php

and i got a fatal PHP error which was permissions related.

I checked the file permissions and found the Internet guest account didnt even have read access to the silverstripe files so i granted them modify,read and execute and write permissions and then when i type in the url

http://localhost/index.php

it appends the url to

http://localhost/index.php/dev/build?returnURL=

AND i get the 'HTTP 404 - File not found' error again.

I think ill just put this in the too hard basket for now im afraid. It clearly doesnt seem to work as simply as installing on wamp.

Cheers Sam