[CentOS] CentOS5 w winbind samba integrated w Win2k8 AD

Is anyone out there using CentOS5 integrated correctly with a Windows 2008 domain so that active directory authentication can be used for samba shares? I have tried the newer RPM's from SERNET up to 3.5 and 3.6 without any luck. The usual behavior is wbinfo returns the active directory users and groups but 'getent passwd' only returns local users. I also tried compiling samba from source but could never get winbind to properly connect.

I have tried this with Ubunutu and CentOS6 and both of those "just worked". So if this is working for anyone with CentOS5 would you be willing to share your samba version, samba conf and pam setup? I've put a lot of time into it and also worked with the samba mailing lists without any success.

Thanks