Hey Hf2006,
I can see a lot has happend since I read your diary last so forgive me if I'm a little outdated.
I am sorry about you dad, I know how its like. I call my dad the living corpse, he has gotten so many operations, nearly died once or twice, but he is a surviver. He doesn't smoke though... But my sister does, I know she's having a hard time stopping again, I think she eventually gave up, but thats not to say its impossible. Maybe you can get him on the renew-your-life-train, like tell him about how good you've been feeling since you've started loosing weight. Its sort of has the same affect.... I don't know...
I am also sorry about your friends bf. I hope its going better. I don't think she should put up with it though, maybe he need some angermanagement or something. I am not saying he's hitting her, but words are also a kind of abuse, so if its really bad, then maybe she should leave...
I think that was about if for today... chekking the tread... there has been a lot of carmen electra lately, good work

About the body fat thing, I think it depends on the brand, maybe its alittle of, but you can still use it to see how much you are going down... You know, when its like you are standing still on the weight, but in reality your loosing fat and gaining muscles...
Well, have a nice day, sorry this got so long...