Where on my iPad can I find if iTunes is updated to the latest version?

You do not update iTunes on your iPad, you can only update apps or the iOS.

To check if your iPad is up to date go to settings>general>about>version ???

When asking about the latest version of iTunes this is the program iTunes which is installed on a computer. You can download and install the latest version here:

http://www.apple.com/itunes/download/