It works!!
Thanks for the wonderful support and for the Kernel Build guide. Here are the diff in kernel-2.6.9-023stab032-x86_64-smp.config.ovz for enable ACL in x86_64:
1199c1199,1202
< # CONFIG_EXT2_FS_XATTR is not set
---
> CONFIG_EXT2_FS_XATTR=y
> CONFIG_EXT2_FS_POSIX_ACL=y
> CONFIG_EXT2_FS_SECURITY=y
> # is not set
1202,1203c1205,1208
< # CONFIG_EXT3_FS_POSIX_ACL is not set
< # CONFIG_EXT3_FS_SECURITY is not set
---
> CONFIG_EXT3_FS_POSIX_ACL=y
> # s not set
> CONFIG_EXT3_FS_SECURITY=y
> # is not set
Cheers,
Luis Fernandez