Mirrors:

http://filespace.com/b1w7ptl43tpk/boomsd2_lbx.part1.rar.html
http://filespace.com/kfmtzwgsojbx/boomsd2_lbx.part2.rar.html
http://filespace.com/05mzy13gtlsp/boomsd2_lbx.zip.html