This is really an awesome script, we use it daily in my channel on my network.
Came back to get an update as it had stopped working. Updated the script but sometimes still get responses like this:
() Last: (2417wks 5days 10hrs ago) Change: () Mkt Cap: Link: http://finance.yahoo.com/q?s=tls.ax
Also just a note, I always have to edit the responses to be pub msgs and not notices, but I forget every time how to. Might be worth making that an easy option.