Thanks guys. Not much in the manual. I am having a hard time with the mount and unmount stuff too. Thanks for the help. Nothing showed in Gallery until I mounted and unmounted my Droid again. Confusing. My first smartphone makes me feel stupid!
Takes a little while to get used to. If you are trying to transfer music I found the easiest way is to find you itunes music folder on your harddrive. Open it in folder view (should have all your music in folders seperated by artist). Then plug you droid into the computer and mount the sd card. Then look at the droid sd in folder view and find the music folder (or create one named music). Then all you have to do is drag the folders from your itunes library over to the music folder on your droid. Worked perfectly for me...can do the same with pics, etc.