You can just install a usb forwarder channel that will allow you to access your USB Loader from the main menu, or install channels for individual games so that they show up on the main menu. There’s two options from here on out, and you’re welcome to do both.
If you followed my previous post on attaching a USB hard drive to your Wii, you now should have the convenience of loading games directly from your hard drive without ever having to worry about swapping discs.