Querys?

I have only just ventured into this and recently recieved my copy of fs2002 (I know it isn't the latest but didn't want to go all out straight away.)
However I am working my way through the 'Learning to fly' area and find that sometimes I cannot hear the instructor clear enough is there anyway in the options to amplify or muffle background noise?
I was also wondering whether I could get him to repeat his instrucitons if I have not heard correctly?

This question may have been posted before, I had a quick look but couldn't find much. If this is the case I would be greatful if someone could re-direct me.

Thanks.

P.S I am using arrow keys at the moment as I am waitng to recieve my joystick in the post. How much easier would you guys say it is with the advantage of a joystick?