Problem in creating a new nation

I have made a new nation - Christmas Island (instead of UK). I added two leagues, new cities, languages etc, I have also made Intercontinental club cup competition and almost everything works perfectly. I was wondering if someone could help me about two problems I have. 1. Is there a way to add capital city and population to the new created nation? 2. When I start the game and select only the new nation file, everything works properly but when I add the intercontinental club cup competition file all kits in league become the same as the one first made (UD - 2062002129). Is there a possibility to solve the problem with the kits? Thanks a lot if you can help.

And of course Christmas Island Graphics (kits, flag and city pics.)