The log size display in the history viewer has not moved from 0mb yet. Is this because there isn't 1mb yet (as in it doesn't display <1mb)? Might be a bug, might not be. Thanks.
If you have less than 1 Mb of histories, AIM+ will show that you have 0 Mb. This is not a bug, as you infered, it is merely set up not to show less than 1 Mb.
However, I think it would be more clear to display "<1 MB" instead of "0 MB", so I've already made this change (you'll see it in the next version of AIM+).