[Samba] can Samba 2.2 join Windows 2003 R2 DC?

[Scott Serr]

I have a Solaris 8 box with very old Samba 2.2.8a.  It would be very convenient to join a Windows Domain with a 2003 R2 DC.  (saving about 1 month of bureaucratic busy work - replacing the server)  I've followed the docs on joining a Windows 2K AD, but no success:

[root at box samba-2.2.8a]# smbpasswd -D 2 -j FOO -U me
added interface ip=10.1.4.31 bcast=10.1.5.255 nmask=255.255.254.0
Password:
Got a positive name query response from 10.1.4.88 ( 10.1.4.88 )
session setup ok
Domain=[FOO] OS=[Windows Server 2003 R2 3790 Service Pack 2] Server=[Windows Server 2003 R2 5.2]
service: IPC$    service_type: IPC
failed tcon_X
Error connecting to FOOSERV1 - NT_STATUS_ACCESS_DENIED
Unable to join domain FOO.

Is it even possible for Samba 2.2 to join a 2003 network?

Thanks!
-Scott