There is not one single director of the entire series. There are several directors, who each do a few episodes. This is true of many TV series.
The directors of True Blood include Alan Ball (who is also credited as one of the creators of the show) .
For updates on the series you might try the True Blood page on HBO's web site , or the IMDB page on True Blood . There are also several fan-run blogs about the series, where you can find more information.
