It sounds like you're pretty busy; however, if you have the time, and if the problem still persists, there is something else to look at. The log file is showing some strange information and the crash dump is pointing to something else very messy. After looking over the log file, it appears to be skipping a lot of bad files, such as .cue, .flac, and .jpg. This may not be related, but it's still strange.
What you could do is disable auto-import first, so it doesn't run in the background and mess up the log. Enable logging and restart Media Center so there is a clean log. Then, manually try to import one of these bad files to see if it works (one example being E:\BEATS\ ... \Mad Blunted Jazz (Disc I).cue). Then, could you report the results here along with the log? If it still fails to import, you may need to e-mail the file so we can try and figure out why Media Center can't import it.