First, I really appreciate everyone's offer on helping me create a script for the inbox notifier. You guys are so generous. I'll definitely contact you guys again should I need help with a script. Second, I actually was able to work a script that displays the red exclamation point when you receive a new pm. You guys should be notified when you receive a new PM now! Third, I've enabled Tino's "quick inbox/inbox preview" code that she mentioned on the previous page. Although you cannot directly reply to or view the full message in that panel, I think it gives you a nice overview of the messages in your inbox.
Notification upon receiving a new PM:
Updated inbox preview panel:
I hope we were able to knock out everyone's concern in this thread.