Hi Jeannie, sounds like you are enjoying the new wheels.
Ok, first things first - do you have a manual? If so, RTFM
Second, no - most bikes of that age and capacity do not have a fuel gauge.
Third, most likely you will have what is called a fuel reserve. When the bike runs short of fuel you switch to the reserve supply by turning the fuel tap from ON to RESERVE. The fuel tap is at the bottom of the tank and most commonly near the left rear corner.
It sounds like it may help if you had someone to show you round the bike, take you a out for a first ride and get you comfortable with the basics.
Drop me a PM and I'm happy to spend an hour or two over the weekend if you wish.
Garry from Oz - powered by Burgman