I am not sure whether this is what you're looking for, but there is a better (unfortunately closed-source) program, which supports the following IM clients:
* MSN Messenger
* Windows Messenger
* Windows Live Messenger
* Yahoo Messenger
* Google Talk
* ICQ Lite 4.x/5.x/2003
* AOL Instant Messenger v4.6 or below, AIM 6.x, and AIM Pro.
It also supports command line parameters for easy integration in scripts (i.e. the /stext option to quietly export every password in a text file). As far as I know, the last version, 1.16, isn't recognized by AV software, yet.