Hi Viet,
You just missed it by a week or so :)
Cisco® announces the end-of-sale and end-of life dates for the select Cisco Unified Communications Manager Express Feature Licenses. The last day to order the affected product(s) is April 9, 2009.
End-of-Sale Product Part Number
FL-CCME-36
Cisco CallManager Express Feature License For Up To 36 Users
Replacement Product Part Number
FL-CCME-35
Feat Lic Communications Manager Express Up To 35 Users
End-of-Sale and End-of-Life Announcement for the Cisco Unified CallManager Express Select Feature Licenses
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/vcallcon/ps4625/end_of_life_notice_c51-500639.html
Hope this helps!
Rob