The vertical nomograph took me a while to find recently, as it can't be downloaded from Paul's site above. In the end, I realised that it was included with 'Real U-Boat 1.45' which I downloaded ages ago (but don't use), so I picked it out of that
You can probably find it for download and do the same - if you need a hand let me know.
The draggable nomograph is certainly useful though, but I found it a bit of a hassle to move it about all the time and have just changed to the vertical one.