1 extract the downloaded file, you will find a file named "data"<br />

2 open up your main Rome - Total War folder<br />

3 click and drag the data folder you extracted into the file named "PI"<br />

4 when asked to overwrite files, select 'Yes to All'<br />

5 open the PI folder and run campaign_map_reset (double-click it, a screen will pop up for just a second<br />

6 if you do not have the campaign_map_reset program, then open up PI/data/world/maps/base and delete map.rwm, and then do the same in PI/data/world/maps/campaign/greek