[SAMBA] Where can I get the Samba 3.0.21b binaries?

[Maurice Forte]

I run a Samba server on AIX 5.3 with an LDAP backend.   I am looking for 
the Samba binaries for 3.0.21b that is built with LDAP support.   If the 
binaries are not available,   could someone give me the build parm options 
to build it on AIX platform?

Thanks in advance,
Maurice Forte