I tried the NeMeSiSiM66 tutorial and it did work, but it crashed halfway through (at the "Castle of Lord Vanarhost" entrance). So I got 2 other ideas.. I did the same thing, except in the 2nd layer I extracted all the data from the BG data folder and put it all in the same BG data folder as the 1st layer, then rebuilt the ISO again. Didn't even start up! The 2nd idea I got was to make the ISO exactly the same, except replace all the layer1 BG data with JUST the BG data from layer 2. Didn't start up either. So how do I get this game working on HDLoader? All I want is the 2nd layer to work so I can keep playing.
nevermind I figured it out now, stupid reason, I was using the wrong iso the whole time, the one that didn't work, not the original... anyway I found a way to get it working: http://www.ps2nfo.com/forums/showthread.php?t=357