I am not fimilar with XXClone, but i will make a suggestion. Try making a new share for a test folder and see if the other computers can see and access the new share. If so, then it is likely that some of the necessary permission were lost in the clone (though that would be odd). What prompted the need to clone? Were you out of disk space, having drive problems, or some other reason? Just wondering if the events leading to the imaging might have effected the shares prior to the clone.
Is your office network a server/client or peer-to-peer configuration?