Repair process completed.
The error messages came directly from AvCommEx.txt. They were not messages that popped up at me or displayed. I just happened to come across them when looking at the files in my log folder.
Did a search for aavm4.dll. No reference to it in the forums. That file is still not on my computer, however, there is an aavm4h.dll file. Maybe when the avast! developers updated the Home Edition 4.5, they might have changed the dll name and not changed everywhere in the program that refers to it. If that's not the case and this is a completely different file, I still don't have it.
I had a similar problem with the skins. I downloaded them all from the web, but avast! did not recognize them. I had to download them all again from within the program to get avast! to "see" them. That's when I noticed the differences in the filenames. Some end in aswsc, and some end in asws.