Postgresql does not see its files HEEEELP!

Hi!
I got a legacy server to maintain, with PGSQL 7.0, Redhat 6 or smthing.
One day a power interrupt changed my life to hell.
Postmaster doesn't start, and when I start it manually
as user postgres it does not see its databases.. All the files
are right there!!
When I do psql -> \l: all I see is template1. All the bases are gone
But when I connect : \c bip_um -> it connect to the database
but \dt is empty..

Please help!

Regards,
--
  Marcin Gil
  marcin.gil @ audax.com.pl, tel. 694972082
  OIS Audax Sp. z o.o., ul. Barlickiego 4, 97-200 Tomaszów Mazowiecki
  tel/fax (44) 7247530, 7244401