Here are the codes for Battle Isle 2  ( single player maps only )

Level 1   AMPORGE          Level 13 SIETIBU
Level 2   JOGRWAI          Level 14 GEDEROM
Level 3   GEGIDOS          Level 15 ULUARGE 
Level 4   WABODAE          Level 16 ABUNDWA  
Level 5   BUFASWE          Level 17 LANADGE
Level 6   GEHAUWA          Level 18 WAFEFAL
Level 7   OLARIBU          Level 19 BUSALUG
Level 8   FITORGE          Level 20 GEKEFZU
Level 9   DAFATWA          Level 21 YETUDWA
Level 10  WABIKDO          Level 22 WAGOPAY
Level 11  GEEUSAT          Level 23 ZAFLUGE
Level 12  KAIMAWA          Level 24 SKATZWA
                                 
 ENJOY!

P.S If you find out any of these are wrong or you are stuck on a game just 
a note and I will try my best to help you out write to me at compuserve I.D
100267,3115 don't worry if you don't get a reply for a long time I study in
England and only come back in the holidays

                                     Thanks,
                                     Geoffrey Tang