There is also a test job that shows how to read in SUSY input files. To run it you will need the file sugra_pt2.in from the ISAWIG web page. Note that it produces a few warning messages when the decay tables are processed. This is due to the fact that both the built-in decay table and the one read in from file contain entries for top decays, and is not a problem: the duplicates are simply deleted.
Unfortunately the full documentation is not available yet, so you will have to piece together the facts from the 5.9 documentation and the 6.1 release note (ASCII) (Postscript), which lists the changes since 5.9. We hope to rectify this as soon as possible.