Yeah, as Latex said, you've missed one of Beck's installers.

As for the pro bundle poses, I'm not sure, I haven't had a problem yet and I wenth through last night and loaded every pose that came him and the pro extras and didn't have a crash.

I've had nothing but a good experience with M4, I had a few small bumps with understanding in what order to apply the high res texture mats but after that it's been seamless. He's rendering and working great for me! Hopefully you can get these issues resolved cause he's been a delight to work with so far.