The BlockSolve package can obtained from the ftp server info.mcs.anl.gov using an anonymous login. The package is in the directory pub/BlockSolve. The current version number and last date of modification is in the file BSsparse.h. Please send any questions via e-mail to mjones@mcs.anl.gov. Please include your name, affiliation, U.S.-mail address, and e-mail address along with a description of what (if anything) you might be interested in doing with BlockSolve.