A regular part of life as a coder is the appearance of bugs, big and small. In this case, there was one rather big bug that I only noticed well after finishing the tutorial. If you weren't logged in, you were unable to respond to another comment. At least, that's what started me on a debugging quest. After a bit of time drilling through the logic, I noticed a rather big logical problem. See if you can figure it out on your own.

While debugging that problem, I also found another bug regarding posting an anonymous comment and leaving the name field blank. This was fairly easy to fix. The other issue wasn't quite as simple. I've included the updated files below for you to peruse at your leisure. The only changes were in the default.aspx.cs file. I highly recommend you debug the issue on your own to see what caused the bug and why. Debugging will become a major part of what you do as a programmer... it's best you become familiar and comfortable with the process as quickly as possible.

Updated Files