I am sorry but I no longer support versions 2, 3, and
4 of 'CLIFFORD'.Please re-direct your
browser
to http://math.tntech.edu/rafal/
where the newest version of 'CLIFFORD' is posted along with the newest
package 'Bigebra' and the supplementary packages 'SchurFkt, 'GfG',
'Cliplus', 'GTP', and
'Octonion' for Maple.