I don't have the time to look at this, but at least, the chronological order for "the last 5 comments" in my side menu remains okay. For me, this is a minor problem.What is the format of the date of your comments in the originating TXP Table?
Another thing ( I hope the last for the moment):
When I am working now on elder TXP-made entries to add tags or insert the images, the entry is always displayed as new in my RSS feed (at least in my Feedburner feed) though the date did not change. Any chance to avoid this without the "Extended Properties for Entries"-Plug-In?