I've never heard of this happening before in all the years it's been out. After the cutscene, the game should've loaded the second map. Do you have mods in your base folder? Sometimes mods can mess up other mods so if you have some remove them and try again from a previous save point.
Also, if you have Jedi Academy you should play the version for that game instead because it's more refined, better visuals, added videos and some minor bugs worked out.
http://mercenary.bravehost.com/dash2.html