in my excitement, i wrote
Users may view the package's catalogue entry at http://www.tex.ac.uk/tex-archive/help/Catalogue/biblatex.html or browse the package's directory at http://www.tex.ac.uk/tex-archive/biblatex macros/latex/exptl/biblatex/
that last should be:
http://www.tex.ac.uk/tex-archive/macros/latex/exptl/biblatex/
sorry for that, folks.
Robin Fairbairns
For the CTAN team