Interactive map can be added as HTML widget to home page on classifieds website using classibase script. You have to find interactive map from other resource like http://createaclickablemap.com/
Then insert populated html code as regular text widget to home page like described here: http://classibase.com/how-to-place-google-adsense-ads-on-classibase-classifieds-script/
Regarding creating pages we have basic page functionality, you can add text, no visual formatting available. It is used for information purposes only. Links to pages are also can be viewed on any page via widget.