Volume 1 was published by AK Press in 2008 while Volume 2 was published in 2012. Both volumes are available from AK Press in America and in the UK:
AK Press (America)
AK Press (Britain)
It must also be noted that the sections within this volume have been slightly edited to ensure that it approximates volume 1 in size. This has involved trimming around a tenth of the material. In addition, the published bibliography only lists works that are in the print version.