The About says I have Avast! Version 4.8 Home Edition, Build Dec2008 (4.8.2916), Plus Xtreme Toolkit Version 1.9.4.0.
I have set the Maximum File size for Submission to 20,000kb and the pop-up appeared. I will manually update to allow it to send. Thanks!
Update: Okay, I updated from the Taskbar icon and received confirmation that my version was up to date. I assume that's all that has to be done. Will I receive info about the file itself by Email?