This package has been updated on tug.ctan.org and should soon be at your local mirror.
Thanks, Jim Hefferon Saint Michael's College
..........................................................................
The following information was provided by our fellow contributor:
Name of contribution: sseq Author's name: Tilman Bauer Location on CTAN: /macros/latex/contrib/sseq Summary description: drawing spectral sequence charts License type: lppl
Announcement text: ---------------------------------------------------------------------- Update of the sseq package for drawing spectral sequence charts to version 2.0. It now uses pgf graphics instead of xypic, resulting in nicer output and less inexplicable behavior. Many new options and features; consult the manual. Compatible to previous versions 1.0x ----------------------------------------------------------------------
This package is located at http://tug.ctan.org/tex-archive/macros/latex/contrib/sseq . More information is at http://tug.ctan.org/pkg/sseq (if the package is new it may take a day for that information to appear). We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .