I wish to suggest that when you enter comments on the Log Work page, they should be appended to the comments thread rather than a separate Work Log thread.

Having used other bug trackers with similar tabbed interfaces before (Seapine's TestTrack), I have noted that any information not on the first page of a bug is ususally ignored.

Likewise, having used systems where all changes to a bug get appended to the same, front-page thread (Bugzilla, as well as our custom, in-house tracker), I have found it much more useful to have the entire converstational history of the bug in one thread, on one page.

In my opinion, any message a developer types about a bug needs to be in that main thread for everyone to read.