samba - Dec 2006 - samba is solution or always a problem?

Hi, 
I really need help(for God). After that I installed the version 3.0.x
(actual: 3.0.23d) I am have many problem. 
when I create an file inside of exported area of samba, where exist ACL?s fo
group of the Solaris, the samba do not respected these ACL?s.
I can to create files, edit it, but I do not can to rename or to
erase/cancel this file. (always said problem acess denied)
Please, help me. See below my conf:

[global]
	#
        workgroup = COMAU
	netbios name = comaub01
        server string = servidor  %L 
        comment = SAMBA %v
	#

       security = SERVER
        password server =172.18.156.49 172.18.156.39 
        #


	#
	guest ok = No
	#

        #
        log level = 2
        log file = /etc/sfw/var/log/log.%m
        max log size = 5000
	#


	#
        username map = /etc/sfw/smbusers
	#



	#
        wins server = 172.18.156.55
	#

	#
        nt acl support = No
        #

	#
        encrypt passwords = Yes
        unix password sync = Yes
        update encrypted = Yes
        restrict anonymous = Yes
        #
        invalid users = root @root @sys reboot desliga
        #
        create mask = 0777
        force create mode = 0777
        directory mask = 0777
        hosts allow = 172.18.150. 172.18.151. 172.18.152. 172.18.153.
172.18.142.
        browseable = Yes
        hide dot files = Yes


        ###################################################################
        os level = 0
        preferred master = no
        domain master = no
	  domain logons = no
        local master = no
        ##################################################################





	#
	veto files
/*.nws/load.exe/wink*.exe/wqk*.*/krn132*.exe/winsuc.exe/*.vcf/*.mpa/*.mp3/*.
wma/*.cda/*.mov/*.mpe/*.mpg/*.mpeg/*.vcd/*.asf/*.avi/*.wmv/*.asx/*.fil/*.fil
l/*.op2/*.wav/*_scr.*/*.scratch/*.src
	#
	host msdfs = yes
	#
	#

        default case = lower # Padr?o de letras mai?sculas ou min?sculas
para quando os arquivos s?o criados

 
  

[comau]
	comment = Comau
	path = /usr/comau
	read only = No
	valid users = cs02929 es40521

[produto]
	comment = AREA DE DADOS DE PRODUTO
	path = /usr/produto
	read only = No
	valid users = @produto
	#browseable = yes

[powertrain]
	comment = AREA DE DADOS DE PRODUTO
	path = /usr/powertrain
	read only = No
	valid users = @mecanica
	#browseable = yes

###########################################################3
[ptc]
	comment = PRO_ENGENEERING
	path = /server/aplicativos/drives_cad/ptc_win
        read only = yes
        write list = cs02929
	valid users = @produto
	#browseable = yes

[drives_pc]
        comment = drives
        path = /server/aplicativos/drives_pc
        read only = yes
	valid users = cs02929 es40521 cs01669 cmb9000
        write list = cs02929
        #browseable = yes

###########################################################3

[scripts]
	comment = AREA DE NETLOGON
	path = /usr/comau/bkup/netlogon
	read only = yes
	write list = cs02929
	#browseable = yes


[identificados]
	comment = AREA DE NETLOGON
	path = /usr/comau/bkup/netlogon/identificados
	read only = no

[ug_printer]
        comment = AREA DE DADOS DE PRODUTO
	path = /usr/comau/costumizacoes/ug/comau_printers_windows
        read only = No
        valid users = @produto @processo
        #browseable = yes