Do I really need to load U3 in order to use a San Disk Cruzer flash drive

I have been trying to load my San Disk Cruzer flash drive. It (instructions) said to also load U3. I don't need all of that additional stuff that you get included do I.

Also, I am having a great deal of trouble trying to figure out how this flash drive even works. How do you put files on the flash drive?
I thought I remembered it being easier than this????
Help.

I have read that if you remove the U3 software from the San Disk Cruzer flash drive it slows down the write speed, can anyone confirm this?
I don’t know why you are having trouble using the flash drive you just use it as you would any other removable drive remembering to use the safely remove hardware icon.
One problem with this drive (and all very fast flash drives) is that it draws to much current for an unpowered hub causing unreliability if you were to try to do so.