yikes...white smoke now, no oil to top end

thanks for all the quick responses...i have bigger problems now, looks like a small amount of oil in radiator, and alot of white smoke...do we agree blown head gasket, I am also concerned that there is no oil dribbling on the top end to the rockers and such....rocker arm is on correctly with flat spot front and top. this is a shame...only ran it for 10 minutes or so, did not smoke at initial start up. Going to do compression check in a bit...any thoughts?