The database name, port and password used by first-class can be checked in the
file C:\Program Files\Human Edge Software\FirstClassWeb\bin\fcweb.config

When this is changed, you need to go to the program
"Administrative Tools / Data Sources (ODBC)"
on goanna, go to the "System DSN" tab,
select "timetables", and "configure".

Update the "server" field on the first page,
for example it might be:

  GOANNA,4835\HumanEdge2006

then press next and type the database login (e.g. SA) and password
then press next again and if you got the details right, it should be happy.
Make sure the "default database" is set right (e.g. "HumanEdge2006"),
then "next", "finish", "ok".

Hopefully then everything should work nicely.