help ( write by arabic

help ( write by arabic)
slamo 3laikom
my broblem is :
i just fromat my computer becouse i had virus so i see that the best way to format my computer
and i download explorer 6 but now i cant write by arabic in my browser if i like to search or even if i like to write in lakii
i know some of u will tell me that in lakii there is arabic key bord i know but i need to write arabic and search too in any web sit or browser
so i need your help
really i did the multilanguage support and i choise arabic text support from the resetupfor explorer but nathing happed
i do this thing from long time ago so that i cant remember what i did
so please can i find help here from u
thank u friends