hgrill... you are only doing indoor riding?

Like Geonz says, don't get hung up on speed or averages... they mean little if you are wanting to compare them to road speeds/averages.

On an indoor bike you have no wind resistance and a very smoooth "road", so instead of your speed, you should concentrate on;

- time on the bike which will improve your endurance

- cadence, which will improve your form and ability to ride at a higher speed on the road

- technique - such as practising standing, or spinning one leg at a time to improve pedal stroke/form

Above all, have fun... thats VERY important!!!