Looking to reactivate Pure Message on SBS2011

Hi,

Ive taken ownership of a SBS2011 server which has Pure Message on it. From what I can see the product last update was received back in 2014. Im looking to reactivate the product and get our server back under the cover of Pure Message since we have had one or two outbreaks (Locky and similar) which was delivered via email.

Ive copied this from the server which needs updating.

Server group name: PureMessage Server Group
Database: Microsoft SQL Server 2005 (9.00.5000.00) SP4 Express Edition

Server: SBS2011
           PureMessage version:3.1.0.0
           Product release status:Full
           Threat detection engine:3.22.0
           Threat detection data:4.68G
           Threat detection identities:1
           Threat detection identity files:vdl.dat
           Total detectable threats:2782787
           Spam detection engine version:2.7.2
           Spam detection data version:2014.5.19.133625
           Operating system:6.1.7601 (Service Pack 1)
           Processor:Intel(R) Xeon(R) CPU X3430 @ 2.40GHz
           Processor description:GenuineIntel Intel64 Family 6 Model 30 Stepping 5
           Number of processors:4
           Address width:64
           Physical memory(Free/Available):955076/33544408 KB
           Virtual memory(Free/Available):5680308/41804280 KB
           Microsoft Exchange version:14.1
           Microsoft IIS version:7.5
           System default language:2057
           User default language:2057

If possible, I would like to purchase a new license and tap that into the existing product so it updates to the latest version/virus engine etc - any advise would be greatly received.

Thanks
Dave