If this is an IT supported drive - I'm assuming it isn't - you might check with the support folk. Otherwise, 'bout all ya can do is make a sacrifice to the network gods - oops, you just did. Not to be flippant, but I've seldom seen recovery in such matters unless on a commercially/business/corporately supported network. However, if it is a local network drive, you might be able to use a disk recovery tool. I've had some success with that in the past, if I was quick enough.
Never mind, you already have better answers.