Battlefield Vietnam help

I had a problem installing BV where the words were grayed out, but after searching the forums i was able to delete the register's and fix it.
But even though it will let me click install it freezes at the install screen then jumps to 100 percent.Installing nothing but the registries back making the game think it is installed.
I have wanted to play this game for 4 years now and i just got over one of the obstacles.Can anyone help?