Version numbers and downloads - Mailing list pgsql-odbc

I notice that the download site

 http://odbc.postgresql.org/ftpsite/odbc/versions/src/

 shows version numbers 7.2.3, 7.2.4, 7.2.5

Does this imply that the equivalent versions of PostGreSQL are expected?

Also, are there md5sum info for the psqlodbc tar files?

Is there any additional information for those of us who need to use
ODBC from Unix rather than Microsoft?  (the odbc driver supplied with postgres
prior to version 7.3 seemed to work just fine; now that ODBC has moved to
another site/support, we seem to have lost the ODBC capability under Unix.....)

Matt