Here's my problem - I stopped wsusoffline halfway through downloading a large update (W7 SP1). When I re-ran the updategenerator I was not convinced that it re-downloaded that update - indeed the size of the resultant iso file is only 370MB (the update alone should be about 1GB). I tried installing wsusoffline elsewhere on the system and it only produce an iso file of 119Mb.
How can I force wsusoffline to re-download that update, or better still, how can I force it to reset its database completey?