No, I think you need to use an SD card.
yes
Yes, it is possible to physically connect a USB Flash drive to the Wii using one of the two USB ports in the back. However, no official applications support a USB Flash drive currently. The Homebrew Channel, an unofficial softmod, is able to load homebrew applications from a Flash drive, and most homebrew now supports writing to it as well.
download it to your hard drive, then drag and drop onto the flash drive
You can not download the IMVU client to a U3 Flash Drive.
Yes but it probably won't do anything except on the Homebrew Channel. If the power light is green or yellow, you can actually power a USB device from the Wii, for example to charge your iPod.
In the same way you do when you download movie on your hard drive. Save or Save as... choose folder on your flash drive, press OK.
Open up the Flash Drive from the desktop, create a new folder out of the flash drive, select the files in the Flash Drive, then drag-and-drop the files into the folder.
Yes, you can download audiobooks to a flash drive, provided the audiobook files are in a compatible format and not protected by digital rights management (DRM). Many audiobook platforms allow you to download files that can be transferred to a flash drive. Simply connect the flash drive to your computer, download the audiobook files, and then copy them to the drive. Always check the terms of use for the specific audiobook service you are using to ensure compliance.
No!!
No.
you change the folder you want to save it to. when it ask you were you want to save it you change to your flash drive
To download an e-book to your flash drive, simply connect your flash drive to your computer. Then, locate the e-book file on your computer, right-click on it, select "Copy" or "Cut," navigate to your flash drive in File Explorer, and paste the file onto the flash drive. Eject the flash drive safely and you now have the e-book saved on it.