Snowflakes, download the sims and install them, you'll see that the hair mesh ain't included, the sims will be either bald or use a default game hair. EA didn't want the sims 3 exchange to be the same mess as with sims 2 and no hair mesh whatsoever can be included in the sim. Yeah, you can still share pay clothes and pay makeup but that's it. So, these sims ain't a problem, the hair is only for the shiny pics.
Oh, then that was stupid of me. I continue forgetting that the TS3 exchange isn't like the TS2 one.