Have you mapped your provisioning share (core or pref) you are getting your image from?
If not do a map share action pointing on your share and deploy your image like P:\imagefile.
Yeah, there was an issue with the share its self, not 100% on why it was not working..(i did take over from someone else).
I decided to just setup another desktop (its my PXE rep) with our images and setup replication to it and this fixed the issue.
So basically i did do what you suggested and it worked!
Cool, that you got it working for you.