You should continue to follow a guide through every step. The above will contine to step him through the installation of a backup loader. Once you step away from a guide, and are unsure what you are doing.. and may be unsure what all of the steps really do... you can become easily confused, and screwed.
6. Done! You now have HBC and cIOS249 so most of your HB should work. If you plan on staying on 4, format your sd card, download this rar and follow instructions in the readme, if you want to downgrade follow this guide and start at 2c.