Scan Engine Latest version Download ??

Hi can someone help I looking for a trial version of the Symantec Scan Engine to use with Trustwave's MailMarshal SEG, I have tried looking at the download site as suggested in a few threads but I'm blind or its names something different.

"You can also download a 30-day trial from our Trialware site.

http://www.symantec.com/business/products/downloads/index.jsp

Under the Security tab, you'll find Scan Engine."

Any help would be gratefully appreciated

Simon