I received an announcement that Conversagent has changed its name:
Conversagent has changed its name to Colloquis (pronounced “cull oh’ kwis,” derives from the Latin word “colloquium,” meaning conversation). Click here to read more about the announcement.
The new home has been changed as well to buddyscript.colloquis.com and there is a new version of the SDK available in the downloads section.

I guess they missed part of the story:
“Conversive, Inc. v. Conversagent, Inc.: Mr. Burgess was lead trial counsel for plaintiff Conversive in a trademark infringement action filed in the U.S. District Court, Central District of California…”
http://www.smrh.com/attorneys/bios/bio.cfm?attorneyid=112