You can obtain Unifpack via anonymous ftp from poincare.mat.puc.cl [146.155.1.160 , 146.155.23.2] in the directory dist/math/Unifpack, the distribution comes in compressed tar format under the names Unifpack-VR.tar.Z where V is the version number and R is a single letter that describes the release, `a' for alpha, `b' for beta and `c' for gamma (if there is ever such a release).
When uncompressed and untarred Unifpack should create a ./Unifpack directory, all file names in this document or any other documentation of Unifpack refer to that directory, for example, the file ``License'' really is ./Unifpack/License.