Thanks for the help, I am getting it sorted out a bit I guess...
I see that there is the "receive coins" tab, and this is the number/account (what do you call this?

) I share if I want to GET coins.
Mine is : 1QCvEe6xU6Dsh83bxEaEsh8ftGnoqUvgoH
now, if I want to send coins , there is a place for me to enter a number there too (who ever I am sending too)....
However, I get confused as soon as I start to think about my "account"
Do I have a account number, . or just send and receive address?
There is a back up option, it makes a "DAT" file, is that the file I need to keep track of.
I am sorry, for noob questions, but just fighting with terms and some of the concepts.
THANKS YOU for all the help, it is really appreciated