I don't know how credible this is but it leaves me doubtful.Without checking out each quote, I believe the answer is that it's generally accurate, but you need to understand what these represent.
First, there's the normal crap about taking things out of context...
But more specifically, these are decidedly not things that Paul ever said or wrote. These are things that somebody else wrote in a newsletter that was using Paul's name. That doesn't mean that you should let Paul off the hook. It means that what you should be concerned about is not that he's a racist ass, but that he may have a lapses in judgment, as here where he allowed someone else to use his name without monitoring closely how they used it.
It's worth noting, though, that there are some very strong parallels here between Paul's misstep and President Obama. Consider Obama's association with the explicitly anti-American, anti-Semite minister Jeremiah Wright, and with the communist and terrorist Bill Ayers. Indeed, in my opinion, Obama comes out much dirtier in this comparison, because he refused to disavow those other people, and particularly Wright, who is acknowledged to have served (still?) as a mentor to Obama, shaping his thinking. In contrast, Paul condemns those statements, and there's no reason to believe that he ever took their writers' ideas as guidance.
More discussion of this here: http://volokh.com/2011/12/22/libertarians-and-ron-pauls-raci...