make corporate-home-page as default page

Dear technical support,

i have some issue regrding Corpos theme in my website

A- how to make corporate-home-page as default page ?

B- I want to use only one Language Arabic (RTL),please make i sure my steps is correct :
1- Enable local and Content translation modules
2- Chose direction (RTL) from http://www.xxx.com/admin/appearance/settings/corposs "basic"
3- Made Arabic as default Language
4-i faced some issue in translate the words i can't find some word like (blog:Published in,...etc) , i searched here(http://www.xxx.com/admin/config/regional/translate/translate)

Briefly: We need best website in arabic language (RTL) with full translate :)

Thanks in advanced

Suhaib