I'm going to have to figure out when the next volume comes out. The manga is a little different than the anime. It goes into depth about events and stuff. I watched the anime before the manga.
You could try Wikipedia or Tokyopop's official site, they may have some more information on the series from there, and I think that the anime series is by Funimation studios also
I like Trinity Blood a lot. honestly, I found it because I wanted a weird goth vampire manga to read and I liked the cover and I read it and I thought it was awesome
I had already seen the anime before I started reading the manga...although..it was the cover that caught my eye. I scared half the people in the book store when I screamed, "Hey! That's Abel!"