Yes, it's bundled with a plugin. The installation of Makewalk is included in the help.
http://www.makehuman.org/doc/node/mhblendertools_download_and_installation.html

Concerning Blender... it's creepy when using the firt time. I suggest taking the time and doing both gingerbread man tutorials (1 day). It will give you a basic understanding how the Blender Gui works, and the second part is about bones and animation.
http://wiki.blender.org/index.php/Doc:DE/2.4/Manual/Your_First_Animation/1.A_static_Gingerbread_Man
http://wiki.blender.org/index.php/Doc:DE...Gingerbread_Man
That's all you need for loading and retargeting animations. You can do unwrapping and texturing somewhere else.