eboot invalid or unsupported format help

yup now it is just saying
E LDR: Invalid disc directory for the disc game BLUS30443
what do i do i read the quick start guide so many times please help

What does the structure for your game folder look like?

I read through the quick start
I have the same message
---------------------------------
E LDR: Invalid or unsupported file format: C:/Users/Mitch/Desktop/gamereenos/DeS/PS3_GAME/USRDIR/EBOOT.BIN
S LDR: Boot Game: boot done.
---------------------------------

what i am gathering is I did something wrong in the iso decryption process
first I will ask
will renaming the iso have messed up the decryption process? (I was renaming for my own OCD organizational convenience)
second
Which file should do step 9 on?
FILE_NAME.dec.iso
or
FILE_NAME.iso

EDIT: I am also noticing a problem with trying to Game Boot the Game disc in the optical drive as well (Demon's Souls)

You can't boot directly from the disc, this is the whole point in decrypting the data in the first place. You need to extract stuff from the decrypted ISO (FILE_NAME.dec.iso).
That EBOOT error means that either your file is corrupted or still encrypted.