Hi all,
I have finally gone back to my old save file for SotN (PSP Dracula X Chronicles) trying to get the map complete on my Alucard file before I really try any of the glitch stuff (which seems impossible with the crappy D-pad for casting spells). My problem is I finally found what I believe is every secret room using the maps on GameFaqs, and the Library Card trick during the Dracula fight, but I still only have 1889 rooms (200.5%), so I'm missing one, and it's driving me nuts. The only thing I can think of that I haven't tried yet is if you use a Library Card during Shaft, and somehow count that room 'extra' or something? The room you fight Shaft in is blue now that I've done the Dracula Lib. Card trick (twice to make sure I got all of the Drac 'room'), but I honestly cannot think of anywhere else for there to be a room?
Any tips?

Try taking a look at the other map thread. You may find what you need there. All I can think of are the 'wolf trick' rooms. (underground, change into wolf in the water and swim up)