Here is the link I use to find the maps.
http://www.cobbtuning.com/info/?ID=3061 Just click on the model and year of your car and it should bring you to a list of maps... I'm not really sure what they have for you car though. I not to familiar with anything earlier than 04.
Make sure you are using the latest version of AccessPort Manager. I think it is version 2.0.1.5 or later. Connect your AccessPort to your computer first and let it install the drivers if it hasn't already. Then open up AccessPort Manager and toward the top you should see a drop down menu to filter the content. You want to select "Maps" if there are maps that cam with your AccessPort, they will show in the window.
To transfer them to your computer you select "Search Maps" at the left and it will split the screen. You can browse the location where you want the files to be at the top of the left screen and then transfer the maps to your computer by selecting the map and clicking the icon shaped like a computer with an arrow.