I used this method for a DC based 5.00 M33-3 because, it does not change DC 7, everything works, and uses the same files. (Just renamed one) I only added the 2nd menu which simply runs Alex's 5.00 M33-3 installer just like you would from the XMB. You will need the 5.00 SCE updater in the ms0:/PSP/GAME/UPDATE/ folder. You can also take screenshots in the 4.01 version of DC 7 only, by pressing the note key.
Update:
The directory structure got messed up, This is the proper structure. I'm very sorry for the mix up. Don't not worry the error will not effect DC 7.
Just copy MS_ROOT to your MS.
A few tips:
1: Download the 5.00 EBOOT.PBP, rename it 500.PBP, and copy it into the UPDATE folder just like a M33 update.
2: Do not perform any NAND operations under the 5.00 menu, it should work, but I do not have a Slim at this time to fully test this.
