I'm not sure if I can make this a full tutorial but this information is still useful for people.
Basically I'm running an instance of Firefox from a downloaded tar.gz file from the Mozilla website.
For some reason it wouldn't recognize the install system libraries for the Googletalk plugin. So simply put, I did install the downloaded RPM from Google (or the DEB file if you are using Debian). And then I copies all the library *.so files to a folder in my home folder. Specifically this folder:
Just sharing in it helps anyone.