Please help me how to change a theme from 6600 and make it for P900?

Hi kairat! Welcome to mobile9!!!

I don't think it's possible unless you know how to make a p900 theme and would just make a completely new theme using images exactly the same as the 6600 theme that you like. Maybe you could let us know which 6600 theme it is and we could request one of the p900 thememakers here at mobile9 to make one for you, probably carls or vic could help you out on this.

i don't think it's possible either, as the wallaper sizes will probably be different as well

DL p900 theme maker and try to alter wallpaper size, It is actually easier in my opinion to make a p900 theme

Better yet, post pics of your 6600 theme along with the original graphics you used at the P900 Theme Request Thread. Some kind soul will is sure to make you a P900 theme out of the pics you post.

@vic
Seems to me that you are the "kind soul" who could help kairat.