upgrade PlayOnLinux old to new version

Can you give the output of:

lsb_release -a; uname -a; apt-cache policy playonlinux

Thanks

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
Release: 12.04
Codename: precise
Linux shaiful-MS-7267 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
playonlinux:
  Installed: 4.0.18
  Candidate: 4.0.18
  Version table:
 *** 4.0.18 0
        500 http://deb.playonlinux.com/ oneiric/main amd64 Packages
        100 /var/lib/dpkg/status
     4.0.14-1 0
        500 http://archive.ubuntu.com/ubuntu/ precise/multiverse amd64 Packages

The playonlinux site has 4.0.18 as the latest version, which you have
http://www.playonlinux.com/en/download.html

So where do you get the idea you have an old version???

because i not see microsoft word 2010 not in playonlinux list then how to update

Then it is probably not tested. You have nothing to update to, you have the latest version of playonlinux. Have you checked the wine appdb? Why do you need Word 2010?

i watch in youtube have microsoft office 2010 install using playonlinux
and then i try to promote Ubuntu to my another friend.
i want to show what Ubuntu 12.04 can do.

Thanks actionparsnip, that solved my question.