1) Where are you connecting to webdirect from?
b) On the local network with the server from another computer, use the LAN IP of the server.
c) If from outside the network of the server, do you have a static IP address configured?
2) Does the filemaker server page show that the WPE is enabled and working, and webdirect is active?
It sounds like it may be installed, but not properly configured.
1) I'd tried all that which gives the Filemaker 404 error
2) Certainly does show its enabled and working!
Having reinstalled, this appears t have been due to not selecting the php / xml integration at this point!