you can also use an sd card or usb thumb drive if you have one.
i would start over by getting the hbc back to your front page (point at it press A+B and drag it to the 1st page) as this is it what you will need a lot in the future
2nd a syscheck would help to understand what has been done to your wii: How to post a syscheck: Instructions here
in your spare time read these guides on usb loading
don't hesitate to ask questions in the threads of the guides
usb loading with fat32
|Gen3sf's External USB HDD Guide|
good luck for now
think you will need one of these softmod guides. to get some working cIOS. afterwards you will be able to start an application like wiiflow or usbloadergx both will load games from your harddrive AND can copy the discs you already own to the harddrive too. not a difficult task.
Dogeggs up to 4.1 guide
Softmod ANY Wii