Well, a tag to my previous post:
I figured out that Adrenaline does patch the DVD games perfectly. My problem was that the first 2 DVD's I tried it with must have been previously patched from ntsc to pal, because Adrenaline replied it couldn't find any files to patch - must be already patched.
But finally, I tried other PAL DVD Iso's that I had and they all work great on my NTSC system now!

Hooray! So thank goodness for this thread and Adrenaline!
BTW - if anyone can figure out a way to remove the patch already placed on those first 2 dvd iso's I was talkin' about (above) so that I can patch them, please let me know. I'd appreciate it!
Thanks - shaggyd