First off, I must say this is an amazing job you have done. Not only the map, but all the ideas for riddles, traps, mazes and Mysteries in the Castle itself. I might not use all of them, but there are many nuggets to mine here.
Secondly, I tried to download the .ds file so that I could make a player-friendly map (keeping the secrets, the red-marked rooms) to myself.
I don't know if Dungeonscrawl has higher system requirements than my 7-year old Mac can handle (anything too graphical becomes problematic), but I can't get much use out of it. It simply freezes or slows my machine down to the point where I can't do much.
I would love a .pdf version without the red (and possibly blue-marked) text