Thanks Greg - yes, 56 images amounting to 1.5 gig of data reduced to 200kb for IIS
Thankfully the mount took the photos automatically and PTGui did most of the rest while I drank wine. The most time consuming bit I find is masking the horizon, although I only did a quick and dirty mask for this one as I never intended to use the night shot after I saw the initial result (it needed to be much broader in range to crop down to size to get a better effect I recon).
Interestingly, over on Google+ its already my most +1'd image and had over 9000 views in about 12 hours. I think that what appeals to me as an astronomer is not the same as that which ticks the boxes of the rest of the world !