multivariate analysis

[Uta Küpperfahrenberg]

Hello,
I am looking for a program named TSA or TSAGRAPH for interpretion of 
ordination diagramms produced by canonical correspondance analysis. This two 
programs are used for Trend Surface Analysis, an extended graphical technique 
to explore the influence of environmental factor on the distribition of 
species. These programs are Shareware. If someone knows the site or adress or 
has heared about the programs, please send me a mail to:
kuepperf at uni-duesseldorf.de
thank you		 Robert