advertising space for twenty ten

Hi, I have twenty ten theme and I need to do two things ,
1. Make a four block advertising space in the right column I am not a programmer so I need a program that can do this for me , is there a plug in fo do this for me ,I also need to put up my own banner and add text to this, but I am unable to find a way to do this is this possible ? I have check all the widgets and facilities. I am trying to learn as I go along , and have spend many days and different themes. Unfortunately I know nothing about code. If there is anyone that can help me I would be so grateful. Thanks Dawn ??