I made this little batch file to help ppl out with patching your hdloader elf. I've tried most of the "HDL patching" programs, and all the ones but the command line programs wouldn't work for me, not saying they don't work, just they didn't work for me.
For Autopatcher you need a packed hdloader.elf, which is not supplied in the zip. Autopatcher includes HDL_patch, PS2-unpacker, and PS2-packer, all of which are readily available to download freely. It will automatically unpack your hdloader.elf, patch it with your supplied menu.bmp and splash.bmp, then pack it up again ready to be ftp'd to your mc. It comes with all the credited readme files for each program. I am in no way associated with the making of any of the above programs, all I did was make the batch file.