dear robyco, i'm not ali majdfar! but I'm Irainian & I can tell you the translation,
this is the translation of this inscription:
The Great God [is] Ahuramazda, greatest of all the gods, who created this earth, who created yonder sky who created man ; who created happiness for man ,who created Xerxes king ,one king of many ,one lord of many, I [am] the great king Xerxes, king of kings, king of countries containing all kinds of men , king in this great earth far and wide , son of king dariush achaemanian.
