We do not have a download file for the latest version (5.0.7601.18896), but you can try downloading it from the developer's site
Download version 3.7003 from Software Informer
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The file is clean, see the report.
Version: 3.7003 (x86)
Date update: Apr 28, 2015
File name: trustwavesecurebrowsingsetup.zip
Size: 715 KB