Ok, I'm trying ADR patcher 0.5 again and it runs fine this time, but I'm still getting the same flickering.
I'm selecting the .iso under file, then selecting .PS2 PAL > NTSC PATCH ROUTINE (NO Y POS) and hitting begin search. It then says "Found 1 patch locations. Do you want to proceed?" I choose yes; and it says patch complete.
Ok, the first time I did this it didn't work, but I tried it again and it seems to be working now. Thank you very much for all your help and being so patient with me.