We just released a new version of Qloaderd (1.9) that is able to run the translation of Agent channel names from a MySQL table. Once you enable the new functionality by setting
my $dbAgentRewrite = 1;
what it does is that it checks every Agent entry versus the table
qlog_rewrite and, if it matches, the new rewritten value is stored for QM to parse.
You will find more details in the section of the enclosed manual called "Database-driven agent rewriting".
The new Qloaderd is available for download at
http://queuemetrics.com/download.jsp